There are hordes of really impressive yet undervalued resources for teachers, parents and kids to use. I keep mentioning that I want Kusasa to embrace other resources and facilitate their use.
One that is perhaps not undervalued is the totally amazing Phun. Folks in the office are, I think, a little bored by my rantings about the coolness. The youtube clip gives an idea of the speed with which you can do stuff. Teachers should definitely check this one out.