Mathcasts.org

Will writes: So here is another example of the ways in which teachers can be more imaginative with their curriculum and students can get an opportunity to teach. Mathcasts.org is a wiki that is collecting examples of student produced screencasts about math related topics. Most of these are done with a graphics tablet, but I would think that as screen capture programs become more and more accessible, there might be all sorts of variations on this theme. (Especially, of course, if you have a Tablet PC.)