Old Occitan > Links
Rialto. Navigation in Italian and French. Unlike many sites, this has prose other than the vidas or razos. Large apparatus criticus in Italian for many texts.
Troubadors. Many authors, no app. crit. Some English translations. The texts are of unknown provenance.
Montpelhièr l'occitana - much about modern Occitan in the Montpelier area, but much interesting information about Occitan literature in general. In Modern Occitan. Includes an Old Occitan/French dictionary.
Troubador Literature. Many good links, to texts and secondary sources both.