We found a little pearl hiding on Youtube. The
Get It BMX Flalatland School channel is posting how-to videos regularly for about 2 months now. They started with some very basic tricks and already moved on to more advanced stuff like hang-5 and steamroller. There are no comments but the footage is pretty good with slow-motions and sometimes different angles. Certainly another helpful resource for beginners!
Get It - BMX Flatland School on Youtube