Many congrats to the folks over at Ning on hitting the two year mark! David Sklar posts about it:

The past two years have been a lot of work and a lot of fun. It's been gratifying to see the crazy, heartwarming, innovative uses folks have come up with for the platform and also extremely rewarding to work with such talented people.

He points out other bloggers who have mentioned this great event - Diego Doval and Gina Bianchini (on the official Ning blog).