scrollgirl and I have started up a Dreamwidth version of sg_flyboys with raisintorte's blessing. The Dreamwidth version is intended as a place where all things John Sheppard/Cameron Mitchell can be posted (or cross-posted): fic, art, fanmixes, discussions, et cetera. I expect it's going to be a small, friendly community, and all John/Cam fans are welcome to join.
(I don't know yet what we'll do when the next John/Cam Thing-a-Thon rolls around, but we have lots of time to figure it out.)
Oh, and if any of you have a talent for art or layouts and feel like working on making the community prettier, please let me know. :)