Electronic Reference Desk - Almanacs

Information Please
http://www.infoplease.com
This online almanac also includes a biography database, a dictionary, the Columbia Encyclopedia, and an atlas.  It is both searchable and browsable.  This is one of the standard almanacs in print that has made a good transition online--easy to search and find facts quickly.

Computer Almanac
http://www.cs.cmu.edu/afs/cs.cmu.edu/user/bam/www/numbers.html
This computer almanac, maintained by Brad Myers,  a senior research scientist at Carnegie Mellon University, contains statistics and numbers relating to computers and computer use.  It is browsable by category (speed, interfaces, etc.) but not searchable.  Myers takes quotes from current news sources for his statistics; they are arranged with the most recent first, making it easy to see how updated they are.