WELCOME WELCOME toto

Internet 102Internet 102

Overview of Internet Overview of Internet 102102

Review of basic internet Review of basic internet navigationnavigation

Searching for and finding Searching for and finding information on the internetinformation on the internet

Security and PrivacySecurity and PrivacyQuestions??Questions??

Basic NavigationBasic Navigation A A Web BrowserWeb Browser is a program on your computer is a program on your computer

that allows you to view web pages when you that allows you to view web pages when you are connected to the internet – Internet are connected to the internet – Internet ExplorerExplorer

Information on the internet comes in the form Information on the internet comes in the form of websites, which are made of web pages. of websites, which are made of web pages. Each website has a unique web address.Each website has a unique web address.

To navigate from web page to web page, follow To navigate from web page to web page, follow linkslinks

Use a SUse a Search Engineearch Engine to look up websites and to look up websites and information on the internetinformation on the internet

Search EnginesSearch Engines There are millions and millions of web pages There are millions and millions of web pages

that make up the Internetthat make up the Internet Search engines are special websites that help Search engines are special websites that help

you to find information on other websitesyou to find information on other websites They work by indexing lists of important words They work by indexing lists of important words

on websites and the addresses to those sites. on websites and the addresses to those sites. When you type in a word to search for, the When you type in a word to search for, the search engine searches through its index of search engine searches through its index of words and pulls up the websites that contain words and pulls up the websites that contain that wordthat word

Results are usually ranked by relevancy: Results are usually ranked by relevancy: Complex formulas, but related to how many Complex formulas, but related to how many times a word appears, what order it appears, times a word appears, what order it appears, and where it is on a pageand where it is on a page

Search Engines to Search Engines to trytry

Many different onesMany different ones Commonly used ones are Google, Commonly used ones are Google,

Yahoo, and BingYahoo, and Bing Some differences between different Some differences between different

search engines: Indexing process, search engines: Indexing process, layout, advertisements, ranking of layout, advertisements, ranking of resultsresults

But results will be similar regardless of But results will be similar regardless of which one you usewhich one you use

Basic SearchesBasic Searches Search by typing in a keyword or words related Search by typing in a keyword or words related

to what you are looking forto what you are looking for Use words that you think will appear on the type Use words that you think will appear on the type

of site you are looking forof site you are looking for Use descriptive wordsUse descriptive words Use as few terms as possibleUse as few terms as possible Usually searches are Usually searches are notnot case sensitive and don’t case sensitive and don’t

include punctuationinclude punctuation Provide context- even though search engines are Provide context- even though search engines are

powerful tools, they can’t compare to the power powerful tools, they can’t compare to the power of the human mindof the human mind

www.google.comwww.google.com

Advanced SearchesAdvanced Searches Allows you to limit or narrow your Allows you to limit or narrow your

search by choosing specific limitations, search by choosing specific limitations, such as multiple search terms, word such as multiple search terms, word order, excluded words, and datesorder, excluded words, and dates

Look for an advanced search option Look for an advanced search option linklink

Boolean Operators: AND, OR, NOTBoolean Operators: AND, OR, NOT www.yahoo.comwww.yahoo.com

Evaluating Evaluating InformationInformation

Information found on the web is not always reliable or Information found on the web is not always reliable or accurateaccurate

Be critical!Be critical! Look at the web address or URL for cluesLook at the web address or URL for clues Look for an “about us” type link or other credentials Look for an “about us” type link or other credentials

for the person or organization responsible for the for the person or organization responsible for the contentcontent

Look to other sites for confirmation, find out what Look to other sites for confirmation, find out what others say.others say.

Be aware of ads and scamsBe aware of ads and scams http://www.havidol.com/http://www.havidol.com/ http://descy.50megs.com/descy/webcred/webcred/http://descy.50megs.com/descy/webcred/webcred/

dhmo.htmldhmo.html

Interesting SitesInteresting Sites Google images- Google images-

www.google.comwww.google.com Wikipedia- www.wikipedia.orgWikipedia- www.wikipedia.org Internet Public Library – Internet Public Library –

www.ipl.orgwww.ipl.org Bookmark your favorites for Bookmark your favorites for

easy access!easy access!

The Deep WebThe Deep Web Websites that you must have a Websites that you must have a

password of some sort to log into, or password of some sort to log into, or that have information that isn’t that have information that isn’t accessible to everyoneaccessible to everyone

Search engines don’t index the Search engines don’t index the contents of the deep webcontents of the deep web

Databases- www.mcpl.lib.mo.usDatabases- www.mcpl.lib.mo.us

DatabasesDatabases Reliable Content – subscribers like Reliable Content – subscribers like

libraries pay for databases, and their libraries pay for databases, and their content must be reliablecontent must be reliable

For MCPL databases, you must enter your For MCPL databases, you must enter your library card number for accesslibrary card number for access

Searching process is similar to search Searching process is similar to search engines- usually an advanced search optionengines- usually an advanced search option

Searching is just done within the content of Searching is just done within the content of that databasethat database

Searching the Library Searching the Library CatalogCatalog

Similar to process for search engine Similar to process for search engine searchsearch

But…library catalog doesn’t index But…library catalog doesn’t index the entire content of library the entire content of library materials, you can only search materials, you can only search certain indexes such as author or certain indexes such as author or title.title.

Look for Look for power search power search optionoption

Safety and SecuritySafety and Security There are some threats associated There are some threats associated

with being connected to the internetwith being connected to the internet VirusesViruses TrojansTrojans SpywareSpyware

How to Protect your How to Protect your ComputerComputer

FirewallFirewall Be wary of what you download- Be wary of what you download-

www.download.com www.download.com Anti-virus/anti-trojan softwareAnti-virus/anti-trojan software http://www.microsoft.com/protect/http://www.microsoft.com/protect/

videos/security/SecurityHi.htmlvideos/security/SecurityHi.html

Questions?Questions?