Did you see Second Life made January 29th's issue of Newsweek- Politics: Pelosi in Pixels? Well, Kim and I have been searching SL's Capital Hill for Senators and Representatives stumping on the issues. So far I haven't heard any speeches, but I have seen some nice history displays. Here is a picture of my avatar in the chambers. You can see the speaker's podium, and up above are some viewing screens (they can project videos there).
I showed this to our AP Government teacher- he is excited to try this and might create groups for his kids and meet online with them after he explores it.