I just wanted to leave a quick note - I've been getting quite a bit of email, as you might imagine, so I've gotten a little behind in responding. So, please don't take it personally if you haven't heard back from me. I'll try to get through the backlog, but with the increased volume combined with the end of the semester here, it might take a bit.
On a related note, I might try to figure out how I can embed a chat into the blog periodically for live chats about volcanoes ... we'll see if I can figure out how to do that.
That being said, keep the emails and questions coming!