Image: 'flickr time' www.flickr.com/photos/86438096@N00/274238061 Trekking through the World of Information Effective Search Strategies for Teachers

Definition of the Net The Internet is the publicly accessible worldwide system of interconnected computer networks that transmit data by packet switching using a standardized Internet Protocol (IP). It is made up of thousands of smaller commercial, academic, domestic and government networks. It carries various information and services, such as electronic mail , online chat , and the interlinked web pages and other documents of the World Wide Web .

How big is the web? 56 billion static web pages are publicly available on the World Wide Web. Another estimated 6 billion static pages are available within private intranet sites 200+ billion database-driven pages are available as dynamic database reports ("invisible web" pages) Google.com indexes 9.75 billion web pages. Image: 'Released to Public: Sinai Penninsula and Dead+Sea+from+Space+Shuttle+Columbia,+March+2002+(NASA)' www.flickr.com/photos/39735679@N00/491430005

56 billion static web pages are publicly available on the World Wide Web.

Another estimated 6 billion static pages are available within private intranet sites

200+ billion database-driven pages are available as dynamic database reports ("invisible web" pages)

Google.com indexes 9.75 billion web pages.

Today 200 billion pages Only 50 Billion is static web Google has only indexed 20% Daily Web Space increases by 100,000 websites Image: 'LOGO2.0 part I' http://www.flickr.com/photos/16851909@N00/93136022

200 billion pages

Only 50 Billion is static web

Google has only indexed 20%

Daily Web Space increases by 100,000 websites

Search Strategy Choose appropriate key words Select right tools Evaluate Information Image: 'http://www' www.flickr.com/photos/65919269@N00/557840620

Choose appropriate key words

Select right tools

Evaluate Information

Searching the Free Web Image: 'PSP Browser vs Landscape Dell X50v’ www.flickr.com/photos/44124452748@N01/29502230 Use Advanced Searching

Use Advanced Searching

A few search engines

Metacrawler

Boolean Searching Add +ABC Minus -ABC Default DEF OR ABC Exact phrase “ABC” Wild card ABC* Synonym ABC~

Samples OR NOT AND http://www.internettutorials.net/boolean.html

Deep Web The invisible web is a vast repository of information that search engines don't have access to, such as databases Private networks, called intranets, that are not actually hooked up to the Web Forms , like ColdFusion or CGI Password-protected sites , like a university library Sites that intentionally, for various reasons, keep their information from being indexed by search engine spiders Image: 'Andromeda, again.' www.flickr.com/photos/13447091@N00/251478651

The invisible web is a vast repository of information that search engines don't have access to, such as databases

Private networks, called intranets, that are not actually hooked up to the Web

Forms , like ColdFusion or CGI

Password-protected sites , like a university library

Sites that intentionally, for various reasons, keep their information from being indexed by search engine spiders

Effective habits: What do others like? Use The "Three Strikes" Rule Don't Play Favorites Use Specialized Search Sites Image: 'no denial' www.flickr.com/photos/60648084@N00/2462966749

What do others like?

Use The "Three Strikes" Rule

Don't Play Favorites

Use Specialized Search Sites

Web Evaluation Techniques Before you click to view the page... Look at the URL - personal page or site ? ~ or % or users or members Domain name appropriate for the content ? edu, com, org, net, gov, ca.us, uk, etc. Published by an entity that makes sense ? News from its source? www.nytimes.com Advice from valid agency? www.nih.gov/ www.nlm.nih.gov/ www.nimh.nih.gov/

Look at the URL - personal page or site ? ~ or % or users or members

Domain name appropriate for the content ? edu, com, org, net, gov, ca.us, uk, etc.

Published by an entity that makes sense ?

News from its source?

www.nytimes.com

Advice from valid agency?

www.nih.gov/

www.nlm.nih.gov/

www.nimh.nih.gov/

Web Evaluation Techniques Scan the perimeter of the page Can you tell who wrote it ? name of page author organization, institution, agency you recognize e-mail contact by itself not enough Credentials for the subject matter ? Look for links to: “ About us” “Philosophy” “Background” “Biography” Is it recent or current enough ? Look for “last updated” date - usually at bottom

Can you tell who wrote it ?

name of page author

organization, institution, agency you recognize

e-mail contact by itself not enough

Credentials for the subject matter ?

Look for links to:

“ About us” “Philosophy” “Background” “Biography”

Is it recent or current enough ?

Look for “last updated” date - usually at bottom

Web Evaluation Techniques Indicators of quality Sources documented links, footnotes, etc. As detailed as you expect in print publications ? do the links work ? Information retyped or forged why not a link to published version instead ? Links to other resources biased, slanted ?

Sources documented

links, footnotes, etc.

As detailed as you expect in print publications ?

do the links work ?

Information retyped or forged

why not a link to published version instead ?

Links to other resources

biased, slanted ?

Web Evaluation Techniques What Do Others Say ? Search the URL in alexa.com Who links to the site? Who owns the domain? Type or paste the URL into the basic search box Traffic for top 100,000 sites See what links are in Google’s Similar pages Look up the page author in Google

Search the URL in alexa.com

Who links to the site? Who owns the domain?

Type or paste the URL into the basic search box

Traffic for top 100,000 sites

See what links are in Google’s Similar pages

Look up the page author in Google

Web Evaluation Techniques STEP BACK & ASK: Does it all add up ? Why was the page put on the Web ? inform with facts and data? explain, persuade? sell, entice? share, disclose? as a parody or satire? Is it appropriate for your purpose?

Why was the page put on the Web ?

inform with facts and data?

explain, persuade?

sell, entice?

share, disclose?

as a parody or satire?

Is it appropriate for your purpose?

Try evaluating some sites... Search a controversial topic in Google: "nuclear armageddon" prisons danger “ stem cells” abortion Scan the first two pages of results Visit one or two sites try to evaluate their quality and reliability

Search a controversial topic in Google:

"nuclear armageddon"

prisons danger

“ stem cells” abortion

Scan the first two pages of results

Visit one or two sites

try to evaluate their quality and reliability

Other Internet Politics Copyright, Fair Use & Plagiarism Where did the info come from? public domain? creative commons? Giving credit

Copyright, Fair Use & Plagiarism

Where did the info come from?

public domain? creative commons?

Giving credit

Citation Generator

http: //theconnectedclassroom . wikispaces . com/Digital_Images What about images?

Why Use NetTrekker? Searches are Academically relevant Image: 'Questions' http://www.flickr.com/photos/42788859@N00/318947873

Searches are Academically relevant

Why Use NetTrekker? Educator reviewed & evaluated Aligned to state standards Read Aloud Rated by readability level Image: 'question mark ?' www.flickr.com/photos/49968232@N00/12364944 Image: 'question mark ?' www.flickr.com/photos/49968232@N00/12364944

Educator reviewed & evaluated

Aligned to state standards

Read Aloud

Rated by readability level

http://middle.nettrekker.com/userinfo/pa.epl Register Create User Name Passcode & enter YOUR IU’S Keyword

Regular Logon school.nettrekker.com

Keyword Web Persons Images Standards Drill down through headings Timeline Elementary – Theme Search

Keyword

Web

Persons

Images

Standards

Drill down through headings

Timeline

Elementary – Theme Search

Let’s Start Searching!