Pocket Language
Online Translation and Translation Software
Online translations are always a first approximation ...
Altavista Babelfish online translation (*30 Mar 2005)
Systran online and software (30 Mar 2005)
Google Language Tools (22 May 2006)
Online Dictionaries ETC
Not trying to include specific languages here ...
Thesaurus Roget, but American
You can download a British thesaurus based on the public domain version of Roget from Zugg software (*26 Mar 2008)
Ask Oxford Oxford English Dictionary (*26 Mar 2008)
Dictionary American again (*26 Mar 2008)
Lingsoft (Finland) electronic dictionaries and thesauri (*30 Mar 2005)
Language processing
Lingsoft "solutions for language processing and comprehension" (30 Mar 2005)
Language Automation Inc multilingual website support (30 Mar 2005)
Voice input and Speech recognition
IBM ViaVoice (*30 Mar 2005)
ScanSoft Dragon Naturally Speaking, IBM ViaVoice and other products (*30 Mar 2005)