While I don't need videos in order to learn, I find that seeing concepts represented visually while hearing them described by someone often works better than simply reading them. I've done some of CodeSchool's courses even though I already kind of knew the material, just because seeing it presented in that format helped reinforce things.

Furthermore, having coding exercises with a checker that can tell if you've done things correctly would help a ton when it comes to actually writing Haskell code.