A. Online Encyclopedias   
Research for information on almost every subject imaginable.

Bartleby.com - mega-search.. great books online; encyclopedias, dictionaries, etc.
britannica.com - mega-search.. includes britannica entries and related internet websites.
Encarta - search.. world of knowledge for teachers and students.
Encyclopedia.com - search.. browse alphabetically or by subject.
Symbols.com - symbols.. seach by symbol or name; histories, uses, and meanings.
whatis.com - technology.. over 2,000 encyclopedic definitions and topics.
World Book Online - fee required.. authoritative articles and multimedia features.
xrefer.com - mega-search.. searches multiple encyclopedia resources for results.

B. Facts/Almanacs    
Get your fill of triva, statitics and facts here.

CNN Video Almanac - videos.. historical events on video.
didyouknow.com - facts.. wide range of interesting stories and fascinating facts.
Fact Monster - mega-site.. complete reference center; almanac, atlas and more.
FedStats - statistics.. gateway to statistics from over 100 federal agencies.
Guinness World Records - records.. world records, video clips, and more.
Infoplease Daily Almanac - almanac.. useful tips, information, and facts.
quoteland.com - quotes.. search by topic, author, or occasion.
refdesk.com - mega-site.. dictionaries, encyclopedias, reference sources.
The Old Farmer's Almanac - almanac.. useful information and facts for all walks of life.
The World Factbook - facts.. from the CIA; country facts, maps, and information.
US Census Bureau - facts.. statitics and facts from the census bureau.
UselessKnowledge.com - facts.. over 25,000 trivia facts, quotes, quizzes, history, and more