Live Groups is far from perfect, of course, and it only really works well on either very small projects or with very small groups. Once you have more than about five or ten people collaborating on something, it'll be time to step up to a more business-grade solution. Still, I'm impressed with the simplicity of this little tool. I can only hope Microsoft will continue to bridge the gap between Live Groups, Office, and Windows to give users a more seamless way to drop in files, get updates, and send messages to the group.