I manage a MemberClicks site on behalf of a professional association, it's not even close to my full-time job. I am one of about five people that can admin the site, the other four aren't in much at all. It gets 80% of the job done for them, but there's very little customization available for the remaining 20%. Allows multiple membership levels Creates a members only area, offering private web pages, discussion lists, a quasi-Facebook environment. Offers a membership directory that the users can personalize.