Acronyms
American Heritage Dictionary
Bartleby
Best Places
Canadian Encyclopedia
Columbia Encyclopedia
Daily Almanac
Dictionaries-OneLook
Dictionaries-yourDictionary
Encyclopedia of World History
Fast Facts
Forms of Address
Funk & Wagnalls Encyclopedia
Glossaries
Info-Please Almanac
Jewish Encyclopedia
Language Dictionaries
Merriam-Webster Dictionary/Thesaurus
Middle East
Mythology & Folklore
Reference Services-Digital
Stanford Encyclopedia of Philosophy