My inbox last night and today indicated the demise of two community sites Pollen and BuddyNetwork. BuddyNetwork was a virtual business community, for some reason I could never get the site to work on my browser. The site was a peer of the likes of ecademy, but a bit more funky.
Pollen was a community of taste-makers run by the people who run Sense Network. Members have been blended in to Sense. Pollen has been retired but may be back (like a rock star with a huge tax bill).