FirstSearch and World Almanac
http://newfirstsearch.oclc.org/
http://www.worldalmanac.com/index-m.htm

Information Please
http://infoplease.com

The Farmer’s Almanac
http://www.almanac.com

Weather Almanac
http://www.galegroup.com

Bowker Annual Library and Trade Book Almanac
http://www.infotoday.com/pressreleases/pr020703-1.htm

Emily Post
http://www.bartleby.com/95/

CRC Handbook of Chemistry and Physics
http://www.hbcpnetbase.com/hbcp/default.jsp