Ning is a rip off. There are multiple people who claim Ning still charges them after they shut down their network. They had to go to the bank to stop payments. Ning has a better business bureau rating of F: *://sanjose.bbb.org/Business-Report/Ning-Inc-245024
The site would never away your personal info, and the social Ning networks are really creative, such as "PengSpace" and "Wiglington & Wenks Party Network".