[Discover] Thesaurus.com http://thesaurus.reference.com/
(reference dictionary english language) 
[Discover] Thinkmap Visual Thesaurus http://www.visualthesaurus.com/ (reference dictionary writing tools)
[Discover] Online Dictionary, Encyclopedia and Thesaurus. Free access. http://www.thefreedictionary.com/ (reference dictionary encyclopedia english)
[Discover] SourceForge.net: A set of linguistics tools http://sourceforge.net/projects/linguistico/ (italian dictionary tools office)
[Discover] Dictionary Toolbox: 50+ Dictionary & Reference Sites http://mashable.com/2007/09/13/dictionary-toolbox/ (reference dictionary language resources)
[Discover] Reference.com http://www.reference.com/ (encyclopedia reference search research)
[Discover] Dictionary.com http://dictionary.reference.com/ (dictionary reference search english)
[Discover] Thesaurus.com/Roget's Thesaurus Alphabetical Index http://thesaurus.reference.com/Roget-Alpha-Index.html (thesaurus)
[Discover] Dictionaries Thesauruses & Phrases http://www.tabornsw.edu.au/library/Library%20Dictionaries,%20Thesauruses%20and%20Phrases.htm (dictionaries info thesaurus)
[Discover] Thinkmap Visual Thesaurus http://www.visualthesaurus.com/ (reference dictionary writing tools)
[Discover] Online Dictionary, Encyclopedia and Thesaurus. Free access. http://www.thefreedictionary.com/ (reference dictionary encyclopedia english)
[Discover] SourceForge.net: A set of linguistics tools http://sourceforge.net/projects/linguistico/ (italian dictionary tools office)
[Discover] Dictionary Toolbox: 50+ Dictionary & Reference Sites http://mashable.com/2007/09/13/dictionary-toolbox/ (reference dictionary language resources)
[Discover] Reference.com http://www.reference.com/ (encyclopedia reference search research)
[Discover] Dictionary.com http://dictionary.reference.com/ (dictionary reference search english)
[Discover] Thesaurus.com/Roget's Thesaurus Alphabetical Index http://thesaurus.reference.com/Roget-Alpha-Index.html (thesaurus)
[Discover] Dictionaries Thesauruses & Phrases http://www.tabornsw.edu.au/library/Library%20Dictionaries,%20Thesauruses%20and%20Phrases.htm (dictionaries info thesaurus)