Top Search Engines

 Top Meta-Search Engines

Top Web Directories

• Google
• All the Web
• MSN Search
• Altavista
• Excite

• Vivísimo
• DogPile
• Metacrawler
• Ixquick
• Chubba
• Mamma
• Web Crawler

• Yahoo!
• Librarian's Index to the Internet
• About.com
• LookSmart

Education-Related Subject Guides

Kid's Search Tools

• Kathy Schrock's Guide
• Infomine
• Education World
• TeacherNet
• Teachers.Net
• Awesome Library

• The Exploratorium
• Teacher's First

• Yahooligans
• AskJeeves for Kids  
• Tekmom
• Google Directory for Kids and Teens

Search & Sort Tools for Teachers

 Custom Search Tools

• The Gateway to Educational Materials (GEMs)
• Digital Library for Earth System Education (DLESE)
• Science NetLinks

• American Memory: Historical Collections from the Library of Congress
• Freeality.com: multiple search engines
• Ask Jeeves: natural language search engine
• HighBeam Research(subscription-based)

• google.com images
• Bibliomania: online literature library
• ditto.com: searches for photos

The "Invisible" Web

• About