Recently I had the opportunity to speak at the Berlin TouchDesigner Summit, hosted by Derivative, makers of TouchDesigner.
I gave a talk on using TouchDesigner and GLSL to make a fluid simulation using the Navier-Stokes noncompressible fluid advection formulae, and I lead a workshop on drawing in python for plotters like the AxiDraw. Both those videos are online now.
The workshop is a bit long and didn't move as fast as I'd liked - it was billed as an intermediate workshop but the crowd was of a mixed skill level so we paused a lot for bug hunts ... in retrospect I should have made the step by step instructions a little more clear.
In contrast, the GLSL talk moves at 100mph the whole time, so you don't need to watch in fast-forward.