Online Reference

General English-language Dictionaries

• American Heritage Dictionary, 4th Ed.
• OneLook Dictionaries
• Dictionary.com (several dictionary links)
• Hypertext Webster Gateway
• 1913 Unabridged Webster's Dictionary
• The Century Dictionary Online
• Wordsmyth Dictionary-Thesaurus
• Thesaurus.com
• WordNet: A Lexical Database for English

Specialized Dictionaries

• Online Rhyming Dictionary
• Dictionary of Literary Terms
• A Glossary of Rhetorical Terms with examples
• Crossword Puzzle Solver
• The Alternative Dictionaries: multi-language list of slang (and vulgar) words

Maps

• MapQuest
• Expedia Maps
• Map Machine @ National Geographic

Phone Directories

• 411
• AnyWho
• People Finder
• Switchboard
• Ultimate people directory