CRAM has had success in implementing a Facebook group (link here ). We use it to generate interest for events, post pictures, results, etc., some light Q&A, smack-talk, etc. However, it would never be able to match the coverage of catsailor's technical threads. Its simply not set up to hold (and/or organize) that type of information as a long term matter of record.

FB is complementary to, but not a replacement of a website and forum.