For those in education, the difficulty in teaching young minds is how to keep the students interested in the some times dry information coming from the textbook or even the info from the computer!
In Second Life, the Rezzable sims present information in an interesting, interactive way... virtual education.
I went to see the preview of the King Tut Virtual presentation. I took a few pictures, but you got to go visit it yourself to get the full impact of the rendered images.
Expect to spend at least two hours here and don't fly it... walk it for the best impact.