Grex Lantine Loquentium
"study and use of Latin as a living language among academics, students and amateurs across traditional language borders. Anyone is free to use and contribute to the discussion groups as long as it is in Latin. (HUMBUL)
Notre Dame University Archive project
offering searching by word stem or word ending for about 15,000 words, English to latin and Latin to English. Provides useful links to other dictionary and grammar sites including: 'Whitaker's Words' (with a 30,000 word vocabulary).