locating central travelers’ groups in travel blogs’ social networks (accepted journal of...
TRANSCRIPT
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Locating Central Travelers Groups in Travel Blogs Social
Networks
Vasiliki Vrana,
Assistant Professor, Department of Business Administration
Technological Institute of Serres, [email protected], Terma
Magnisias, 62124 Serres, Greece
Kostas Zafiropoulos,
Assistant Professor, Department of International and European
Studies, University of Macedonia, [email protected], Egnatia 156, 54006
Thessaloniki, Greece
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Locating Central Travelers Groups in Travel Blogs Social
Networks
Abstract
Purpose The paper, using Travelpod.com, aims to provide a
methodology to locate central groups of travelers and to describe
pattern characteristics of central travelers.
Design/methodology/approach The paper uses snowball sampling
to locate travelers and analyze their hyperlinks interconnections to
identify central travelers groups. Analysis of the adjacency matrix of
the social network of travelers using Multidimensional Scaling and
Hierarchical Cluster Analysis to identify core travelers groups
follows.
Findings Seven % of travelers are considered as central travelers.
They form core groups containing the most active and information
providing travelers. Group membership is correlated with common
travelers characteristics.
Research limitations/implications Research is limited to a
specific network of travelers, to a specific time interval, and to a
specific sampling method. Repetition of the study in other travelers
networks in several time instances using a full list of member
travelers would help to generalize findings. Also other graph
theoretic approaches, besides the statistical analysis used, could
reveal more properties.
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reviews and recommendations are becoming the new digital form of
word of mouth (Litvin et al., 2008; Schmallegger and Carson, 2008).
Sigala (2009, p.221) mentioned as information is the lifeblood of
tourism, the use and diffusion of Web 2.0 technologies have a
substantial impact of both tourism demand and supply. Moreover,
blogs are becoming a very important information source for interna-
tional travelers for getting travel advice and suggestions. Blogs can
impact on travelers evaluation of tourism products and decision
making process. when reading others travel experiences
through weblogs, this also creates to the reader the willingness to
travel and visit the same destination claimed Sigala (2009, p.225).
Xiang and Gretzel (2010) also highlighted the functions of blogs in
creating and sharing new experiences, trustworthiness to online
travelers and the use of blogs as marketing intelligence.
Travel and tourism blogs take several different forms, but the
majority of travel blogs are diaries of individuals about their trips
(Lew, 2007). Many public travel blog sites, like travelblog.org,
travelpod.com, blog.realtravel.com, yourtraveljournal.com,
worldnomads.com and travelpost.com, have specialized in hosting
these individual travel blogs (Pan et al., 2007; Schmallegger and
Carson, 2008). Travel blogs can include comments, suggestions,
advice, directions, maps, photos and videos, links to related websites
hyperlinks, to external information, links to other travelers, RSS,
trackbacks, comments, taglines, archives, permanent links and
blogrolls (Blood, 2002; Sigala 2009). Travelers use blogs as a new
way of sharing tour experiences with family and friends and with an
international audience. Knowledge seeker tourists can get from blogs
virtual experiences of trips, trend information for their destinations
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(Schmallegger and Carson , 2008; Sigala, 2007) and prepare their
trips with confidence using subjective data unfiltered and free of
marketing bias (Hepburn, 2007). Due to the unbiased information
shared in blogs based on first-hand authentic travel experiences,
many travelers tend to use and trust blogs information for searching
for travel information, tips and selecting travel suppliers and
destinations (Sigala 2009, p. 224).
Blogging tools enable between-blog interactivity (Du and
Wagner, 2006) thus social networks are established and relationships
in the world of blogs are built (Efimova and de Moor, 2005; Sigala,
2009). Finding blogs communication patterns is important since The
discovery of information networks among websites or among site
producers through the analysis of link counts and patterns, and
exploration into motivations or contexts for linking, has been a key
issue in this social science literature (Park and Jankofski 2008, p.
62). Further, in the study field of blogging (especially in political
blogging), it has been proved that blogs are organized around central
focal point blogs, where most of the informative conversation is
taking place (Drezner and Farrell, 2004). In this sense, travelers
blogs may also be organized around central blogs. The latest may
serve as the most influential travelers blogs where the most read
posts appear. Thus, it is interesting to provide the tools and
methodology to locate such central blogs groups. The paper aims at
providing a methodology to locate central groups of travelers and to
locate travelers that link to them. Finding central travelers is
interesting and useful since one can locate them and study the
information these influential travelers provide. The paper Favorite
travelers lists and finds connectivity patterns between these groups
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of travelers: patterns of central travelers and patterns of travelers
linking to them. The paper studies travelers interconnections through
hyperlinks by using as a case study Travelpod.com.
2. Conversation in the blogosphereBy definition, blogs link to other sources of information usually to
other blogs. Barger (1997) who first used the term weblog, defined
blog as a web page where a blogger logs all the other web pages
he finds interesting. Drezner and Farrell (2004, p. 5) defined
weblogs as A web page with minimal to no external editing,
providing on-line commentary, periodically updated and presented in
reverse chronological order, with hyperlinks to other online sources.
Blogging tools provide the appropriate enhanced features for
managing blog interactivity and promoting the creation of social
networks among bloggers (Du and Wagner, 2006). Sigala (2008)
based on Ying and Davis (2007) and Lento et al. (2006) studies
mentioned blogs create and maintain strong online communities
through their social ties tools such as blogrolls, permalinks,
comments and trackbacks and Williams and Jacobs (2004)
highlighted that interactivity is the key to the success of blogs and the
other social network systems . Interactivity between blogs can be
implemented with blogrolls, permalinks and comments and
trackbacks. A blogroll is a list of blogs that many bloggers
maintain and occupies a permanent position on the blogs home page.
The list consists of the blogs that the blogger frequently reads or
especially admires and offers links to these blogs. Blogrolls
provide an excellent means of situating a bloggers interests and
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preferences within the blogosphere. Bloggers are likely to use their
blogrolls to link other blogs that have shared interests mentioned
Drezner and Farell (2004, p.7) and Marlow (2004, p.3) wrote This
form evolved early in the development of the medium both as a type
of social acknowledgement and as a navigational tool for readers to
find other authors with similar interests. Albrecht et al. (2007, p.
506) referred to this form as connectedness of weblogs.
Interactivity can be also achieved through permalinks and
comments. Comment tools are allowing readers to express their
opinions on a weblog entry and permalinks are allowing weblogs link
posts with one another. In that way, bloggers and readers can express
thoughts and discuss their opinions through an iterative cycle of
postings and comments (Drezner and Farell, 2004 ; Guo et al., 2008;
Mishne and Glance, 2006). Such posts themselves link directly to a
specific post on the other blog, and are a key form of information
exchange in the blogosphere. Drezner and Farrell (2004) highlighted
the fact that links and page views are the currency of the
blogosphere.
Last, are trackbacks and pingbacks. Trackback is a citation
notification system (Brady, 2005) which informs bloggers of traffic
to their original entries. It enables bloggers to determine when other
bloggers have written another entry of their own that references their
original post (Waggener Edstrom Worldwide, 2006). If both
weblogs are enabled with trackback functionality, a reference from a
post on weblog A to another post on weblog B will update the post
on B to contain a back-reference to the post on A (Marlow, 2004)
creating in that way a symmetrical link the original post (Efimova
and de Moor, 2005). A pingback is an automated trackback.
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Pingbacks support auto-discovery where the software automatically
finds out the links in a post, and automatically tries to pingback those
URLs, while trackbacks must be done manually by entering the
trackback URL that the trackback should be sent to
(http://codex.wordpress.org /Introduction_to_Blogging#Pingbacks)
Conversation in the blogosphere is organized around some
central focal point blogs, an elite minority of blogs that is known as
A-list blogs (Herring et al., 2004; Herring et al., 2005). A-list
blogs were first recorded in the political blogosphere (Drezner and
Farell, 2004) however nowadays some blog authors manage to make
themselves a celebrity among the community of bloggers whatever
the type, purpose, or content of a blog is (Trammell and
Keshelashvili, 2005). A-list blogs receive the most inbound links
from other blogs and are the most widely read and cited. Waggener
Edstrom Worldwide (2006) commenting on A-list blogs wrote
almost every category has a handful of bloggers who are perceived
to carry more weight in terms of influence than the others.
3. The case study and MethodologyTravelPod was founded in 1997 as the world's original travel blog
and it has been identified as one the most popular travel blog site by
many researchers (Carson, 2007; Pan et al.,2007; Schmallegger and
Carson, 2008; Wenger; 2007). On 18th November 2008, TravelPod
was identified through Technorati as the 11th between the 100 top
blogs having an Authority: 9299 and Rank: 9, and is the 1st travel
blog in the list.
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TravelPod introduces itself as: TravelPod's free travel blog
lets you chart your trips on a map, share unlimited photos and videos,
and stay in touch while you travel. Thought TravelPod travelers can
1.preserve travel memories by uploading photos and videos, chart
trips with travel maps and weave photos directly into stories 2. Get
inspired for next trip by meeting other travelers and participating in
travel forums 3. Share experiences with family and friends, by setting
up email import tools, send email updates and RSS feeds and email
notifications for new entries 4. Use advanced features as update
travel blogs from mobile phone, track visitors of blogs, show travel
blogs on MySpace, Facebook and other sites send update
notifications to Facebook friends and others. In TravelPod each
traveler can maintain many blogs presented at travelers TravelPod
page. At this page, Recent Entries, Recent Comments, Recent
Forum Posts, Favorite travelers and Others Similar Travelers
are also presented. Favorite travelers is a special form of a blogroll
and is a list of travelers that travelers frequently read or especially
admire.
Travelpod.com provides a Top 100 travelers list, according
to number of visits to their website. This paper considers the Top 100
travelers list and records links from travelers to other travelers within
TravelPod. The functionality of Travelpod.com regarding Favorite
travelers lists serving as blogrolls, allows to record and study the
incoming links between travelers.
Next, by using snowball sampling, links from these travelers
to new travelers within TravelPod are recorded. Snowball sampling
has also been used in collecting data in political blogosphere and is
one of the preferred methods to sample in social networks studies. By
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considering the Top 100 travelers as a starting point the aim is to
maximize the probability of finding most popular and therefore
perhaps most linked travelers. Finally, a set of 563 travelers and their
incoming links is formed. The recording of travelers and their
hyperlinks was done during January 2009. Regarding the recording
of incoming links between travelers, an automated routine was used.
So an effort was made to keep human interaction during recording to
a minimum level.
The adjacency matrix of the social network of travelers was
used. In this matrix if two travelers I and J have a relation then 1 is
placed at the cell (i,j), otherwise 0 is placed in this cell. The paper
adopts a statistical approach for studying networks, although other
graph theoretic approaches also exist such as finding components or
cliques. These graph theoretic notions are used in the study of social
networks to locate actors who interact with each other. Our statistical
approach on the other hand, in particular scaling and clustering
analysis, is the preferred method because the interest is to find groups
of travelers which have these properties: 1) within these groups the
travelers need not be interconnected but 2) rather, they need to be
linked by nearly the same set of travelers. In this sense, clustering
algorithms applied on the original adjacency matrix are considered
suitable for locating these groups.
The paper studies incoming links between travelers, using
the Favourite travelers list which is equivalent to blogroll. In order
to construct a network, a 563 by 563 non-symmetric binary data
matrix is used where unity is placed in cell ij if traveler i links to
traveler j through the favourite travelers list, else zero is placed in the
cell. The next step involves the construction of a travelers
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interconnection network. It is a directed graph where travelers are
noted as nodes and incoming links as directed arrows. The paper
adopts a method introduced by Zafiropoulos and Vrana (2010) for
locating core blog groups in political blogging. The original idea
(Drezner and Farrell, 2004) is that political blogs are organized
around central focal point blogs, where most of the informative
conversation is taking place. Zafiropoulos and Vrana (2010)
introduced a combination of social networking theory,
multidimensional scaling and hierarchical cluster analysis to locate
such groups by studying incoming links through blogrolls. By
finding such groups, one can explore how bloggers are organized and
easily follow how conversation proceeds. For travel blogs, the idea
may take a different form. Travelers or travel blogs are
interconnected through blogrolls or favourite travelers lists, and in
this way they may form groups of blogs or travelers, which are
considered familiar or most important (while the rest of the blogs or
travelers are more isolated). It is important to locate such groups in
order to see how travelers or travelers blog are organized, which
blogs are considered familiar and which are their characteristics that
distinguish them from the rest of the travelers.
Multidimensional Scaling (MDS) is used in the analysis as a
data reduction technique and also to quantify the original binary data.
The method reproduces the original data and map them on a fewer
dimensions space (namely two in this analysis) while the effort is to
keep intact the distances among the original data on the new
reproduced data. Stress is a measure of goodness of fit between
distances of original data and distances of the reproduced data. Better
fit is assumed when stress is close to zero.
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Hierarchical Cluster Analysis (HCA) uses the quantified data
from MDS to produce clusters of travelers with similar properties.
Since the input is the incoming links, travelers in the same cluster are
linked by nearly the same set of travelers. So in this way the travelers
in a formed cluster are regarded to be of the same family have
common characteristics - by travelers who link them. Some of the
clusters that are produced by HCA, gather the largest number of
incoming links. If this happens then they may serve as conversational
focal points.
4. FindingsMultidimensional Scaling (MS presents very good fit with
Stress=0.0493), followed by Hierarchical Cluster Analysis (HCA)
result to the formation of seven clusters of travelers regarding
incoming links. These clusters of travelers are described in Table 1.
They are called Clusters hereafter. To decide about the suitable
number of out-clusters, the study uses a scree plot of the number of
clusters against Wilks Lambdas.
Only 41 out of 563 travelers, i.e. 7.3% of the 563 travelers
are organized in seven central clusters. Cluster 1 consists of 14
travelers who have an average number of incoming links 5.71.
Clearly, it is the least referred cluster out of the seven clusters since
the travelers within the cluster are referred nearly by six other
travelers. Cluster 2 consists of ten travelers and has an average
number of incoming links of 6.6, which slightly larger than the
relative number of incoming links of Cluster 1. Cluster 3 consists of
seven travelers and has an average number of incoming links 6.86.
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Cluster 4 consists of five travelers with an average number of
incoming links 11.83. Cluster 5 has two travelers luchy and
wakingdream and an average number of incoming links 14. Cluster
6 and 7 both consist of one traveler each, themeoff in cluster 6 with
number of incoming links 16 and whereshegoes in Cluster 7 with
number of incoming links 30, which is the largest of all (Table 1).
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Cluster number and
travelers name in
TravelPod
Number
of
incoming
links
Top100
rating
# visitors
6/1/2009
Travelers country of
origin
# of countries
visited
Posted photos
5/12009
Posted
entries
5/1/2009
In travel
blogs
5/1/2009
1. aaronvdb 6 Australia 10 39 107 5
1. alinmattrtw2005 4 27 129,625 United Kingdom 44 1797 315 1
1. barrettbingley 5 Canada 20 536 77 1
1. bjw1981 4 Australia 13 92 50 2
1. clintonb 5 57 84,401 Australia 33 1084 181 3
1. kevandsian 6 9 204,195 United Kingdom 51 778 201 5
1. marktjhung 9 25 3945 111 4
1. matty 6 Australia 24 125 90 2
1. mills-mcshea 7 United Kingdom 13 950 95 2
1. moses 4 Australia 19 27 64 2
1. racheljohn 4 40 109,711 United Kingdom 22 1119 136 2
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1. shanewilson 5 20 140,005 Australia 35 2222 295 2
1. slipperycoconut 5 63 81,409 United States 16 1020 128 1
1. zento 10 34 117,15 Argentina 14 6032 207 2
Average 5.7 24.21 1411.86 146.93 2.43
2. christinasworld 9 96 61,117 United States 30 680 126 3
2. darkstar 6 Canada 14 480 160 7
2. foolsgold 5 73 73,728 United Kingdom 39 1150 201 4
2. gypsymichelle 4 Philippines 63 1299 225 25
2. jeffsadventures 7 5 239,234 United States 25 3268 215 1
2. off_road_clara 5 92 63,162 United Kingdom 20 1492 485 9
2. radsolv 6 United States 79 510 734 31
2. scottwoz 10 12 188000 United Kingdom 22 5558 582 3
2. will 9 Australia 34 1994 365 4
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2. yellowdragon 5 Germany 23 1647 133 10
Average 6.6 34,9 1807,8 322,6 9,7
3. exploreamerica 6 36 9962 406 17
3. jawad 7 10 203,191 United Kingdom 17 999 304 2
3. lucinate 6 16 159,106 Australia 51 3798 333 2
3. Paul 8 Thailand 20 3123 200 2
3. siscri 8 69 75,247 Ireland 28 487 128 5
3. twittg 6 23 133,082 United States 70 2706 355 9
3. uncledavros 7 3 417,829 Australia 63 14158 479 3
Average 6.8 40,71 5033,28 315 5,71
4. eddakath 14 30 121,849 Australia 14 9746 559 3
4. Jessica_cdn 9 Canada 24 218 164 9
4. Iraleigh 11 15 164,485 United States 34 4373 402 3
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4. peacefrog 11 11 188,367 France 48 5922 650 5
4. stevejames 12 4 266,808 United Kingdom 15 114 376 2
4. technotrekker 14 1 674,165 Australia 47 4477 325 2
Average 11.8 30,33 4141,66 412,66 4
5. lucky 14 53 85,875 Canada 43 1667 122 11
5. wakingdream 14 Canada 16 1061 82 6
Average 14 29,5 1364 102 8,5
6. thymeoff 16 6 226,049 Canada 24 2446 161 1
7. whereshegoes 30 2 536,275 Canada 38 2454 737 5
Table 1. Description of clusters of most linked travelers (visited 5 and 6/1/2009).
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4.1 Clusters characteristics
This section deals with the analysis of the characteristics of travelers
clusters. The seven clusters consist of the most linked travelers.
According to the methodology of cluster analysis, travelers within
each cluster are linked almost simultaneously by the travelers. So in
this way the travelers in a formed cluster may be regarded to be of
the same family have common characteristics - by travelers who
link them. A question that arises is on what basis other travelers link
to each group of central travelers? It is probable that common
characteristics of central travelers place them in the same cluster
according to other travelers choices (favorites). Thus it is interesting
to investigate whether blogs within clusters share common
properties. Several characteristics were taken into account in order to
see whether they may be associated with placement of travelers to the
specific clusters. They may not be all the characteristics necessary to
drive to a solid conclusion but rather they must be considered to
constitute an available set of data that allows making a first attempt
to analyze clusters profiles. These are traveler s number of
incoming links, his/her placement in the top100 TravelPod rating (in
case he/she belongs in this list), number of visitors to his/her site (on
6/1/2009), travelers country of origin, number of countries visited by
him/her, number of posted photos by him/her (till 5/1/2009), number
of posted entries (till 5/1/2009), number of his/her travel blogs
(5/1/2009), duration of his/her membership, and whether he/she
received TravelPod Badges (by means of recognition of his/her
achievements or history regarding participation in TravelPod, for
example if he/she is a founding member) (Table 1).
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Clusters with higher number of incoming links consist to a
higher degree of travelers with TravelPod budges (founding members
etc), longer period of membership and more posted entries in their
blogs. This can be verified by correlation coefficients calculated for
number of incoming links and the travelers characteristics (Table 2).
In addition, placement in TravelPod top100 list is correlated though
not significantly with number of incoming links. This means that
there is a tendency for those travelers who are ranked high (according
to visits to their sites) to be part of clusters with high number of
incoming links. However, the actual number of visitors is not
correlated with number of incoming links, so number of visits to their
own sites, does not provide evidence of the placement of travelers in
some cluster and therefore is not connected in this since with
networking patterns among travelers.
Regarding travelers country of origin, travelers mainly come
from Australia, United Kingdom, Canada and United States. Only
few come from Argentina, France, Germany, Ireland, Philippines,
and Thailand. Travelers that belong to most linked clusters, those are
Clusters 5, 6 and 7, and they all come from Canada. Regarding the
number of countries, that the travelers have visited there is not a
linear correlation between this number and the cluster membership
(Table 2). Regarding number of posted photos and posted entries of
the travelers, it is only number of entries which is significantly
correlated with number of incoming links, and cluster membership.
Travelers that are linked higher, also have higher communication
flow by means of how frequently they address to visitors of the
website by narrating their experience. On the contrary, number of
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blogs of the travelers is not correlated with number of incoming
links.
Finally, duration of membership and TravelPod budges are
correlated with number of incoming links. The most linked travels
have also entered TravelPod earlier and hold some budges that is
they are founding members or moderators, etc. In this sense, it seems
that duration of membership and TravelPod budge holding are
synonyms. To clarify the connection of the travelers profiles with
cluster membership, a stepwise regression analysis is performed,
considering number of incoming links as the dependent variable and
the rest variables as independent (Table 3). Only posted entries and
membership duration are affecting number of incoming links (and
consequently cluster membership). According to Beta absolute
values they affect number of incoming links nearly equally, although
posted entries present a higher coefficient (in absolute value). Highly
linked travelers have more posted entries and are members of
TravelPod for a longer time.
Number of incoming
links
Placement in Top100 TravelPod rating -.351
Number of visitors .031
Number of countries visited -.029
Posted photos .186
Posted entries .408(**)
Number of travel blogs the traveler has
created
-.108
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Member since (year) -.317(*)
TravelPod budges (1 yes/ 0 no) .379(*)
(**: p< 0.01, *: p< 0.05)
Table 2. Correlation coefficients of number of incoming links with
travelers characteristics.
B Std. Error Beta T p
Constant 2771.280 1108.315 2.500 .020
Posted entries .018 .005 .559 3.340 .003
Member since (year) -1.381 .53 -.418 -2.497 .021
R2=0.403
Table 3. Stepwise regression of number of incoming links by
travelers characteristics.
5. ConclusionsThe originality of the paper lies on the study of travelers
interconnections using multivariate statistics on data of social
networks to describe core travelers groups. By adopting ideas from
political blogging, the paper proposes a methodology for locating
linkage patterns and describes how travelers are networked, forming
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in this way central groups of travelers. By studying travelers,
interconnection the paper has shown that only few travelers are really
involved in networking, while the average interlinking is low.
However, there exist central travelers groups, which can be located
by using the proposed method. Other travelers within TravelPod.com
recognize and distinguish these groups possibly because travelers
within each group have common characteristics. Analysis provides
evidence that cluster-group membership is correlated with common
travelers characteristics. Also, travelers within some of the clusters-
groups are most active in posting entries while they are members of
Travelpod for a long time. In this sense, core groups contain the most
active and more information providing travelers. It is more likely for
these travelers to be reached by others who navigate through a series
of incoming links that lead to them. In this fashion, it is probable that
these travelers have the potential to address many visitors of the site
and therefore it is probable that they have a bigger impact on the
provision of information. Locating these travelers is important and
useful for both researchers and practitioners, since one can easily
locate them and be informed and analyze discussions of the most
influential travelers. Having in mind that Travelpod.com is one of the
top travel blogs sites, we might consider this case as indicative of the
relative sites.
Due to the unbiased information shared in blogs based on
first-hand authentic travel experiences, many travelers tend to use
and trust blogs information for searching travel information. Blogs
are becoming a very important information source for international
travelers for getting travel advice and suggestions. Blogs play an
increasingly important role in the consumer decision making process
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with the faceless reviewers who add their comments to these web-
pages rapidly becoming the travel opinion leaders of the electronic
age. Considering the importance of blogs perhaps the most useful
application of travel blogs for destination marketing organizations
and tourism businesses is monitoring the attitudes of travelers.
Identifying the characteristics of the authors and readers, and
assessing the extent to which these characteristics match those of key
markets is challenging. Understanding how influential specific blogs
are among their readers is a challenge. On these grounds the paper
strived to identify influential travelers with relevance to the impact
they have on other travelers and regarding to their trustworthiness
measured by the number of incoming links to them. Central
travelers blogs are the most popular and it has been shown from the
analysis, that they are most active in uploading posts, pictures and
information in general. For travelers who wish to be informed,
locating central travelers blogs means avoiding further navigation
through other blogs in order to find information. Thus, travelers who
wish to find information may limit their navigation for economy to
the most linked travelers blogs.
By locating central travelers, a researcher may understand
what the popular characteristics or content are. On the other hand,
knowing where and how people are commenting and sharing their
opinions about their brands gives companies the opportunity to
respond and influence their perceptions of them. Central travelers
could be really valuable to companies regarding provision of
information.
This research is limited to the use of a specific network, it
was performed at some specific time interval, by using a specific
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methodological approach. The study of other travelers networks by
using also other graph theoretic approaches would be useful to test or
enhance the findings.
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