Ning seems interesting!

I can see Ning as a more compelling use of SNS...building a social network of specific people for a specific purpose makes some sense to me.I could see using it to prepare and promote a conference that would showcase events and the people involved or to gather feedback on an idea from a specific user group, etc. In the library world I could see creating a Ning based on shared interests...bookclubs, online gaming clubs, etc. Having the ability to appeal to the social networking principles but with a more selected and purposeful group...yeah I see that.

I am sure that the limitations of "upkeep" are more difficult than with MySpace or Facebook exposure - you would have to explain more and justify why you weren't just using a mainstream SNS. But I think the overriding usefulness would be compelling enough if the ning was well thought out and designed.