Trados: http://www.trados.com/
Translatio: http://translatio.ens.fr/
Translation, Theory and Training: http://www.ttt.org/
Travlang’s Translating Dictionaries: http://dictionaries.travlang.com/
Trésor de la langue française informatisé (TLFi): http://www.atilf.fr/tlfi/
Ulysse: http://www.ulysse.fr/
UNDL Foundation: http://www.undl.org/
UNESCO: http://www.unesco.org/general/fre/
UNESCO - Copyright: http://www.unesco.org/culture/copyright/
UNESCO Libraries Portal: http://www.unesco.org/webworld/portal_bib/