Continental Celtic List
"[f]orum for the discussion of Continental Celtic languages and cultures ... Continental Celtic cultures include Lepontic, Gaulish, Celtiberian, and Galatian."
Gaulish Glossary
A Gaulish-English glossary containing 160 or so words definitely known from Gaulish, the pre-Roman Celtic language of Gaul (now France).
Gaulish Language
Some basic information, including grammatical, on the Gaulish language. The page is an article of the online Encyclopædia Orbis Latini.