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טכנולוגיות שיתופיות וחיפוש Web 2.0ב-

Taly Sharon and Ariel Frankwww.sharon-it.com taly@sharon-it.com INFO May 2006

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Agenda

• The long Tail• Wikis• Blogs (search)• Ajax• Web 2.0 future –

what about web n.0?

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The Long Tail

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The Long Tail

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Wikis

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Wikipedia

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Wikipedia’s Size

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לכל הרוחות – מדריך טיולים

wiki.lekol-haruchot.co.il

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What makes a Wiki• Collaborative Writing• Easy editing and changing

(wiki=quickly)• Monitoring changes

– History saved– Revert option

• Searching utility

• Problems: Spam, Vandalism1994-1995

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Spam Prevention• Restricting the use of certain words

or phrases, using word lists or regular expressions.

• Blocking access based on excessive activity.

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Vandalism

• Studies from IBM claim that most vandalism to Wikipedia is removed in 5 minutes or less.

• In some cases it takes longer, as in the John Seigenthaler Sr. Wikipedia biography controversy.

• In some cases, user accounts or IP addresses are banned from editing certain wikis, and certain pages may be 'locked', to prevent further vandalism. http://researchweb.watson.ibm.com/history/results.htm

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ויקיפדיה בעברית

http://he.wikipedia.org

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ויקיפדיה בעבריתMediaWiki www.mediawiki.orgמשתמשת ב-•

כמו כן רבות אחרות–

מופעלת על ידי מתנדבים ותורמים• ערכים37,000כ-• עדכונים ביום3,000כ-• ערכים נעולים10כ-•

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Enterprise Wiki?• Motorola is using TWiki• Intel

– Used for technical encyclopedia– Implemented using MediaWiki, integrated with

Google Search– Launched March 2006 (preceded by pilot)– Supporting user training program– Over 3,000 article– 10% active users (edited more than 2 pages)– Problems: information security/need for a

better permission mechanism

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Blogs

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What is a Blog• A blog (shorthand for weblog) is a

web-based publication consisting primarily of periodic articles, most often in reverse chronological order:– Publication– Posts by dates– Includes links, multimedia, etc.

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Blogs and Search Engines• Regular Search Engines average

indexing delay is as high as 6-8 weeks.• Regular Search Engines promote blogs in

results, but not efficiently.• Therefore, use Blog search engines to

find:– Breaking news– Most recent information

• Blog search is typically sorted by date but with popularity sort option.

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Blog Search Engines• Technorati.com www.technorati.com/ • BlogLines www.bloglines.com/ • BlogDigger blogdigger.com/ • Blogdex.net blogdex.net/search.asp• IceRocket.com www.icerocket.com • Google BlogSearch

blogsearch.google.com • Clusty blogs.clusty.com• Sphere www.sphere.com

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Technorati• The best one around• Many options:

– All words, exact phrase, at least one, not– Search all blogs, by topic, by URL– Search by Tags– Blog fine– Popular

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BlogSearch Recommendations

• Technorati is the best• For Hebrew search

– Google Blogsearch– Clusty– Language Filter in Technorati when

relevant

• Use Clusty when you need more results (but typically less accurate)

• Use BlogDigger for location (US)

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Blog vs. WikiBlog

• Personal expression• Ordered by dates• Older posts not

changed• Have comments/

talkbacks by viewers

Wiki• Collaborative

contribution• Ordered by topics• Constant update

• Have updates/additions by viewers and comments•http://betsysblog.blogspot.com/

2005_03_01_betsysblog_archive.html•http://www.samizdata.net/blog/glossary_archives/006470.html

*usually

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Ajax

Asynchronous JavaScript and XML

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Example Ajax Applications• Google Maps/Local (Yahoo, A9)• Housing Maps• Google Suggest• Windows live• Yahoo! Instant Search • GMail• Wall Street Journal• And many more..

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Google Suggest• As you type – you get query

suggestions and number of results per query.

• labs.google.com/suggest

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AlltheWeb LiveSearch• Yahoo’s AlltheWeb now has a new

Livesearch feature. • It takes the Google Suggest approach

a step further. • You will instantly see the results to

the right side.

• http://livesearch.alltheweb.com/?ek=1

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Ajax Pros/Cons• Pros

– Interactivity!• Cons

– It might easily break the expected behavior of the browser's back button

– Difficult for a user to bookmark a particular state of the application

– Users might experience delay in the interface of the web application

– It requires users to have JavaScript (or ActiveX) enabled in their browsers

– A challenge for developers interested in adhering to WAI accessibility guidelines.

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Web 2.0 and the Future

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Web 2.0 – Future?• Web 2.0 and the enterprise• Opportunities in “Web n.0”• What is “Web 3.0”?

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Gartner Says…• Web 2.0 Offers Many Opportunities for Growth, But

Few Enterprises Will Immediately Adopt All Aspects Necessary for Significant Business Impact.

• By 2008, the majority of Global 1000 companies will quickly adopt several technology-related aspects of Web 2.0, but will be slow to adopt the aspects of Web 2.0 that have a social dimension, and the result will be a slow impact on business, according to Gartner, Inc.

• "While it is straightforward to add specific technologies, such as Ajax or RSS to products, platforms and applications, it is more difficult to add a social dimension"

Tuesday May 16, 2006

http://biz.yahoo.com/bw/060516/20060516005941.html?.v=1

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Web n.0?

http://blog.outer-court.com/archive/2006-01-17-n79.html

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Web 3.0 is: Enterprise Web 2.0

(i.e Business Applications)• Web 3.0 is going to deliver a new generation of

business applications • brief topology of Web 3.0. It's divided into three (and a half)

distinct layers:– API services form the foundation – Aggregation services form the middle layer – Application services form the top layer – Serviced clients are the and-a-half

• Phil Wainewright http://blogs.zdnet.com/SAAS/?p=68 http://blogs.zdnet.com/SAAS/?p=83

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Web 3.0 is (real) 3D

1. Real 3D– Think Web 4.0

http://blog.outer-court.com/forum/17079.html

2. Philip Torrone jokingly mentioned to me the other day (inside Second Life) that 3D was Web 3.0

– Web x.0, Joi Ito http://joi.ito.com/archives/2005/10/10/web_x0.html

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Web 3.0 is the Semantic Web

• Web 1.0 was the Hypertext/CGI Web. (the basics) Web 2.0 is the Community Web (for people: apps/sites connecting them). Web 3.0 is the Semantic Web (for machines). Web 2.0 and Web 3.0 are a fork we are moving into now

• Web 4.0 is when these technologies come together to form what I call the "Learning Web". This is moving more into the area of Artificial Intelligence.

• http://blog.outer-court.com/forum/17079.html

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Web 3.0 is “the sensor-web”• Web 3.0 is “the sensor-web, in which

the architecture of participation will be an automatic byproduct of the devices we carry around with us.”http://www.stubbleblog.com

• Also in: http://radar.oreilly.com/archives/2006/04/second_order_consequences_of_w.html

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Microsoft's Plan to Map the World in Real Time

http://www.technologyreview.com/read_article.aspx?id=16781&ch=infotech%20&ch=infotech

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Sensors along a Specified Root

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Sensors in a Building

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Web 3.0 will be?• Integration in Web Environment• Enterprise deployment of Web 2.0• Multimedia, 3D and more UI

fireworks• Zero Input Interface

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Web 2.0?

http://www.oreillynet.com/pub/a/oreilly/tim/news/2005/09/30/what-is-web-20.html

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Web 3.0?

Web 2.0 Web 3.0 Contribution Platforms --> Integration MS. Office --> Web Desktop Text --> Multimedia 2D --> 3D Explicit --> Implicit

Desktop --> Wireless/Mobile

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References• Wiki (Wikipedia) http://en.wikipedia.org/wiki/Wiki• What makes an enterprise wiki? (CMS Watch)

http://www.cmswatch.com/Feature/145-Wikis-in-the-enterprise?source=RSS

• Wiki software http://en.wikipedia.org/wiki/Wiki_software• List of wiki software

http://en.wikipedia.org/wiki/List_of_wiki_software• Comparison of wiki software

http://en.wikipedia.org/wiki/Comparison_of_wiki_software• TWiki – an Enterprise Collaboration Platform

http://www.twiki.org, http://www.i-zm.info/data/article.phtml?c_id=5&id=850

• Heb Wikis and Tools http://chiqchaq.sourceforge.net, http://sourceforge.net/projects/chiqchaq, http://mirror.isoc.org.il/fr_content.html

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References• The best Web 2.0 explanations

http://web2.wsj2.com/review_of_the_years_best_web_20_explanations.htm

• The Long Tail (Wired) http://www.wired.com/wired/archive/12.10/tail.html

• The Long Tail (Wikipedia) http://en.wikipedia.org/wiki/The_Long_Tail

• Ajax (Wikipedia) http://en.wikipedia.org/wiki/AJAX• Gartner

http://biz.yahoo.com/bw/060516/20060516005941.html?.v=1

• Microsoft plans to map the world in real-time http://www.technologyreview.com/read_article.aspx?id=16781&ch=infotech%20&ch=infotech