I just did a testdrive of Ning, the new "instant social network" app, and have to say it's amazing. Kudos to Gina Bianchini, founder/CEO of Ning. In just three minutes, I set up my social network, called Bruni, with a tag "PR buzz". Check out brunipr.ning.com. Yet another forum for my views on PR trends & Net startups (and my rants on the ethical sins of our nation's biggest PR firms).