Hiya,
I like Ning so far (have had about an hour to play with it). But, I find it runs slower than chilled molasses on my system - iMac running Safari. I get the spinning beachball of doom more often than not.
Will waste, er, I mean, invest, more time playing in the Ning sandbox this weekend.
I don't meen to spam but, Without webware.com i wouldnt of known about this awsome webservice (ning) I already have my up and it only too a few hours to make... check it out at http://aviatio.ning.com for all you aviators!
It would be great if it could include some advance search on people, like searching for people around your area. It would be great if it has some dating features, and invite more ladies, because they probably like to chat, and could make the network grow faster.
The interface takes a little getting used to, and frankly, while much cooler than Myspace, I don't think it will be another household name. However, it will certainly be a cool 'underground' networking site in the future.