Reference
  Almanacs
 
The 50 States of the United States Global Statistics
Infoplease: All the Knowledge You Need The Old Farmer's Almanac

Dictionaries

The American Heritage Dictionary of the English Language   
A Basic Dictionary of ASL Terms  
Dictionary.com  
Cambridge Dictionary of American English  
Encarta World English Dictionary  
Hutchinson Dictionary of Difficult Words  


Special Dictionaries

Dictionary of Phrase and Fable  
Dictionary of English Slang and Colloquialisms of the UK  
ClicheSite.com