I just came up on some invites for Wallop a couple of days ago but have been too busy with work to explore it so far. I have about half a dozen invites to give away but don't have any friends who I think would use the system enough to give Lili and co the sort of feedback they want for their research project. If you are a friend of mine who would be interested in exploring and using Wallop then ping me over email or respond to this blog posting.

By the way if you are curious about what Wallop is, the quick description of the project is

Wallop [is a place] where you can share photos, blog, and interact with your friends. Wallop is a research project of the Social Computing Group at Microsoft Research, exploring how people share media and build conversations in the context of social networks. 

With any luck I'll get a chance to explore Wallop over the next few days and perhaps will post my thoughts on how the experience compares to other online communities targetted at the same niche.