FreeThesaurus.net

FreeThesaurus.net is a new online thesaurus service offered by DonationCoder.com. We expect it to deliver fast, fine, free thesaurus search results to English language lovers around the globe in their continuous quest for the right words.

If you're like me and seemed to get stuck using the same word over and over then FreeThesaurus.net is for you. Not only are there over 30K entries with over 2M synonyms but the interface and usage is very clean and well designed.

Link:
http://freethesaurus.net/