Man... until yesterday I didn't notice that Keith Lango has his own video channel on YouTube! oO
There is a lot of cool stuff there, with precious info for your animation studies. It is not like having direct feedback on your work and custom exercises, like APT, but it is always good to see and hear what Keith has to say. :)
The most recent video is not an animation class, in the strict meaning of the word. But it can be viewed as one which sums up pretty much everything what Keith teaches: