I guess there aren't any really good forums for papillons out there. I did search as well and didn't come up with much.
This seems to be the biggest forum I found, it won't let you see anything unless you register though.
www.papillon.dogbreed.org - The new Papillon online community for serious Papillon owners and fans.
Here's another one but it seems to be small right now...
http://uppa.messageforums.net/