Google - to find most things
Froogle - to shop and buy
FOLDOC - a free On-Line Dictionary of Computing
Merriam-Webster - when you need a Dictionary or Thesaurus
The StartSpot Network - will simplify your search for the best of the Web.
Medicine Plus - a medical encyclopedia, drug information, directories to doctors, dentists, hospitals, and much more
Fun and Fascination
1421 "The Year the Chinese Discovered the World"
Molecular Expressions - Unseen Worlds Through the Microscope and Telescope
How Stuff Works - to learn how anything works