Its not too late to switch from NING to VOX !
NING will be closing ALL their free-of-charge BMNs and SMNs in Jul 2010 !
Over the last few years NING have built up one of the biggest 'free-of-charge' Business Media Network and Social Media Network customer bases on the web but they now plan to start charging everyone an average of $10/month/network from July 2010 !
I imagine they are assuming that their revenue will to go from £0M to £100M within the year - this may well be true - provided of course that enough of their customers don't switch to alternatives to NING such as VOX, WebJam or WetPaint than continue to be FREE OF CHARGE !
You can read aout all the new non-free NING pricing plans @ http://about.ning.com/announcement/plans.php !