I had this idea about Shadowrun that I'm tossing out as an interesting idea. It seems like it can be difficult to get people willing to run.
So, what if you had two groups of shadowrunners, and each group used a rotating GM from the other group?
For example, group one has A, B, C, D, and E, and group two has N, O, P, Q and R. Group two starts with A running them a mission, then B, then C, and so on. Group one starts with N running a mission, then O, and so on.
Trying to do this with only one group, you'd always have one person out, but if you have two, you don't have to worry about the missing person.
The issue with this is that it requires a lot of people. If we get enough interested and focused people, though, I think it could work really well.
Dunno if forums or via the voice chat would be better.