Almanacs

Altapedia Online     -  "Atlapedia Online contains full color physical and political maps as well as key facts and statistics on countries of the world."
CIA Publications and Reports     -  World Factbook, maps and publications.
Fact Monster     -  For kids! Online almanac, dictionary, encyclopedia, and homework help.
Infoplease.com     -  "All the knowledge you need." Almanac, biographies, dictionary and encyclopedia.
Internet FAQ Archives     -  Usenet Frequently Asked Questions (FAQ) postings.
Pictorial Periodic Table     -  Online table of chemical elements.
U.S. Constitution Online     -  "Have you read your Constitution today? For over 200 years, the Constitution has provided the framework for our government - indeed, it is at the roots of our society. Today, in a time when it is easy to doubt your faith in government, it can be a relief to read what has sustained our nation for so long. If you have not read the Constitution in a while, visit your charter of freedom again."
The World Factbook     -  "The U.S. government’s complete geographical handbook, featuring 267 full-color maps and flags of all nations and geographical entities. Each country profile tracks such demographics as population, ethnicity and literacy rates, as well as political, geographical and economic data."