The University of Texas at Austin offers a free digital reference shelf

Ref Desk offers "the facts, ma'am, just the facts!"

Wikipedia The Free Online Encyclopedia

Merriam Webster's Dictionary and Thesaurus

How Stuff Works. These folks who actually know....how stuff works!

Exploratorium Check this place out for all kinds of weird science.

The U.S. Naval Observatory offers the official time.

National Geographic. More fun than a barrel of monkeys!

National Geographic homework help for when it's time to get back to work.

Take a look at the teaching arm of Seaworld