Web Sites > Reference
Ralph Carmichael  
About.com
How Stuff Works
Merriam-Webster Online
Nolo Press
Snopes
Food Network
All Music
refdesk.com is probably the best single starting point for looking up information.
Economist Style Guide
xrefer A good top-level search in reference sites.
New York Public Library
Acronym Finder
Try Switchboard for telephone numbers (anywhere).
Internet Public Library
The Nine Planets: A Multimedia Tour of the Solar System
Guinness World Records
Internet Movie Database
InfoPlease - an almanac, encyclopedia, dictionary and atlas.
OneLook collects definitions from over 100 different dictionaries.
World Wide Words.
Frank Cruz's Compulsive Guide to Postal Addresses.
InfoSpace
British Pathe archive of pictures.
Roget's Thesaurus (ARTFL Project)
Familiar Quotations (Bartlett)
Mapquest
Math Megalibrary
WebMD
TECHNOLOGY AND ENGINEERING SCIENCES
WebReference has good tutorials.
Britannica
Mr. William Shakespeare and the Internet.
Cliff Notes - a Shakespearean glossary.

Archives

Project Gutenberg Public Domain and Copyrighted books in plain text

Image Archives

Corbis  
Fish and Wildlife Service Fish and Wildlife Service has a large gallery of public domain photos.
Microsoft MS has a large collection of art.
Van Gogh Complete collection of his work
Vermeer haven't found it yet

My page on Movies and Television.

Web Sites > Reference
Ralph Carmichael