http://deals.woot.com/sellout
Today only, as woot deals usually are. Doesn't look like the highest quality projector out there, but for people looking for a primary or backup projector for classes, it might fit the bill. The only thing I can see being an issue is that the only input seems to be for AV cables, not HDMI or VGA but there are adapters for that. Overall not bad for $30.
Just a heads up.