Comment I used JomSocial briefly, (Score 2, Insightful) 20
A couple years ago. It was pretty well polished (tho I didn't attempt too much customization), but it should be at (don't quote me) $150 a site license. The client wanted a social network for their conference and...
My main question for those clients who want social networks is not how, but WHY. Why do you think someone should join your social net, which not only requires an up front time investment from the user, but which is worthless if a critical mass of users is not reached?
The extension itself looked pretty good, so more power to the JomSocial folk, but I think someones time would be better spent on ning and/or social marketing on existing networks.