Directory: Top/Reference/Thesauri

Thesaurus.com
Online version of Roget's II: The New Thesaurus, 3rd edition.
http://thesaurus.reference.com/
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American Society of Indexers - Thesauri Online
Annotated directory.
http://www.asindexing.org/site/thesonet.shtml
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Thinkmap Visual Thesaurus
Interactive dictionary and thesaurus using a visual display for data navigation.
http://www.visualthesaurus.com/
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WordNet - a Lexical Database for English
An on-line lexical reference system whose design is inspired by current psycholinguistic theories of human lexical memory. English nouns, verbs, adjectives and adverbs are organized into synonym sets, each representing one underlying lexical concept. Dif
http://wordnet.princeton.edu/
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Thesaurus
Synonyms and antonyms from AOL's Research & Learn channel.
http://reference.aol.com/thesaurus
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WWWebster Thesaurus
Merriam-Webster Thesaurus
http://www.merriam-webster.com/thesaurus.htm
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Roget's Thesauri
Includes "Roget's International Thesaurus of English Words and Phrases" and Houghton-Mifflin's "Roget's II: The New Thesaurus," third edition.
http://www.bartleby.com/thesauri/
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