Search Comparison: http://extremesearcher.com/chart1.html
The NIST Chemistry WebBook: http://webbook.nist.gov/chemistry/

Invisible Web Examples:
Dictionaries: http://www.m-w.com
Telephone #’s: http://www.infospace.com
Clinical Trials: http://www.clinicaltrials.gov
LRC Catalogs: http://www.libdex.com/webcats
Philanthropy and Grant Information: http://lnp.fdncenter.org/finder
Law Database: http://lawcrawler.findlaw.com/
Psychology: http://www.psychcrawler.com
Find Articles: http://www.findarticles.com
LII: http://www.lii.org
Profusion: http://www.profusion.com
Academic Info: http://www.academicinfo.net
Link List: http://books.valdosta.edu/read/internetsearch.html
Infomine: http://infomine.ucr.edu
Complete Planet: http://www.completeplanet.com
Beaucoup: http://www.beaucoup.com/
LibrarySpot: http://www.libraryspot.com/
Direct Search: http://gwis2.circ.gwu.edu/~gprice/direct.htm
Link for Teaching Students: www.noodletools.com/debbie/literacies/information/5locate/adviceengine.html

Specialty Search Engines:
Teoma: http://www.teoma.com/
IxQuick: http://ixquick.com/
Surfwax: http://www.surfwax.com
Way Back Machine: http://www.archive.org/index.html

Best Way to Evaluate Web Sites:
All the Web: http://www.alltheweb.com
Kathy Shrock's Suggestions for Website Evaluation: http://school.discovery.com/schrockguide/eval.html

Best Lesson Plan Sites:
Eric: http://askeric.org/Virtual/Lessons/
Lesson Plan Page: http://www.lessonplanpage.com
Knowledge Network Explorer: Blue Web'n, Filamentality
http://www.kn.sbc.com
Blue Web’n: http://www.kn.pacbell.com/wired/bluewebn/
Education.com: http://www.education.com/home/index.jsp
PBS: http://www.pbs.org/teachersource/
SCORE Guides: http://www.sdcoe.k12.ca.us/score/cla.html

Best Online Tools:
Filamentality: http://www.kn.pacbell.com/wired/fil/
Teach-nology: http://www.teach-nology.com/
Discovery School: http://www.discoveryschool.com
Quia: http://www.quia.com/

Best Rubric and Reference Sites:
Rubric Builder and Citation Machine: http://landmark-project.com/slate.php3
Reference Desk: http://www.refdesk.com
Trackstar: http://trackstar.hprtec.org/
Picture Search: http://www.ncrtec.org/picture.htm
Themes: http://emints.more.net/ethemes/resources/index.html
Mariam-Webster: http://www.m-w.com

Best Multimedia Sites:
George Lucas Foundation: http://www.glef.org
iMovie Poems: http://albert.sacred.sf.ca.us/user/mckee/4eWebPoems
Online Books: http://www.mightybook.com/home.htm
PBS: http://www.pbs.org/wgbh/nova/
United Streaming:
http://www.unitedstreaming.com

Best Bookmark Archive: http://www.ikeepbookmarks.com

Best Teacher Helpers:
Calendar: http://assignaday-dev.4teachers.org/index.php
PowerPoint Templates: http://www.techtrekers.com/PP/ 
Online Flashcards: http://www.schoolnotes.com
Website to Upload Files: http://www.eboard.com ($)
Venn Diagrams: http://www.freeology.com/graphicorgs/
Theme Page: http://www.stemnet.nf.ca/CITE/themes.html
Question Review: http://www.fno.org/nov97/toolkit.html
Easy Bib: http://www.easybib.com/

Best Fun Tools Sites:
Tesselation Patterns: http://www.best.com/~ejad/java/patterns/patterns_j.shtml
Oragami: http://www.papertoys.com/
Crossword Puzzle Creator:
http://puzzlemaker.school.discovery.com/CrissCrossSetupForm.html

Best Calculators:
Calculator.com: http://www.calculator.com/index.html
Salary Calculator: http://www.homefair.com/homefair/calc/salcalc.html
The Inflation Calculator: http://www.ifigure.com/

Best Field Trips:
OOPS Field Trips: http://oops.bizland.com/vtours.htm
Animated Atlas: http://www.animatedatlas.com/movie.html
Electronic Resources for Teachers: http://ejw.i8.com/ Very Comprehensive and Easily Displayed