Phil Duba has started a new project over on RIAForge for a user group manager. You can find out more on the project page, but the basic idea is to provide a site for managing user group activities. I volunteered to help Phil with this project and I'll be working not only with Phil but also Vadim Chernets, another former co-worker from VirtualEdge.
Phil is going to start using the project's blog to gather requirements but if you have anything you would like to see in user group manager application be sure to let Phil know and we will see what we can do.
I'm looking forward to working on this project as it should give the excuse I've needed to finally dive into Model-Glue. (I've played around with MG but have yet to use it on a project.) Look for more posts as we begin development.