Virtual worlds- I must admit, I have enough to do in the real world, I've always questioned why I'd want to spend time in these virtual ones. So this was an eye opening experience. This article helped me see that role playing can be quite educational, if we use virtual worlds not blocked by my district of course.
From an elementary perspective, some of these virtual worlds are a nice introduction, and this middle school library blog about using second life for class projects is very inspiring. Verdict- I need more experience with this using worlds set up for kids- not really for adults since I can't actually use them through work.