Almanacs

http://www.infoplease.com/almanacs.html
Information Please Almanacs:  Over 200 almanacs covering general information, entertainment and sports.

http://www.almanac.com/
Old Farmers Almanac:  Includes sun and moon set and rise times for anywhere in the U.S.

 Dictionaries

http://www.m-w.com/
Merriam Websters dictionary and thesaurus.

http://www.foreignword.com/
Provides a translation tool as well as links to over 250 foreign language dictionaries

http://www.alphadictionary.com/index.shtml
Search 992 Online Dictionaries at once! Follow the Language Dictionaries link for access to over 300 foreign language dictionaries.

http://www.reference.com/Dir/Reference/Dictionaries/
This directory lists other types in these categories: biographical, foreign language, medical, rhyming, sign language, symbols, etymology, geography, humanities, pronouncing, and science, with extra sections for glossaries, translation, and vocabulary lists.

http://blueray.com/dictionary/
Unusual Dictionaries:  sports to rhetorical devices.

 Encyclopedias

http://www.encyclopedia.com/
Encyclopedia.com, the Internet's premiere free encyclopedia, provides users with more than 57,000 frequently updated articles from the Columbia Encyclopedia, Sixth Edition. Each article is enhanced with links to newspaper and magazine articles as well as pictures and maps - all provided by HighBeam Research..

http://www.pantheon.org/
Encyclopedia Mythica:  an encyclopedia of mythology, folklore and legend.

http://encarta.msn.com/artcenter_/browse.html
Encarta: articles, atlas, web links and more.

http://www.nolo.com/lawcenter/ency/index.cfm
Nolo's Legal Encyclopedia: legal information in non-legal language in seventeen subject areas.

http://www.techweb.com/encyclopedia/
Tech Encyclopedia:  more than 13,000 definitions of computer terms and concepts.