Google Language Tools
Translation of text and web pages between English and Spanish, German, French, Italian and Portuguese.
Pars Translator
Machine translation from English to Farsi in 33 fields of science. Also limited free online translation.
PROMT Online
Translation of text pages between English and Russian, German, French, Spanish and Italian.
ReTranslator
Useful interface for checking the quality of Babelfish translation because the English text you type is translated via a foreign language back to English.
ToggleText
Machine translation using the Kataku system, and human translation, in English and Indonesian.
WorldLingo
Free on-line translation in English, Spanish, French, German, Italian, Dutch, Portuguese, Russian, Greek, Japanese, Chinese and Korean. With context-sensitive option.