Colin Mills has posted some useful advice on preparing online lectures using PowerPoint.
It’s a time consuming job to get even passable results. After I had written the script – which could easily take me 8-12 hours (and I already had the slides prepared) it would take 3 hours to record 50 minutes of material plus the time to turn the Powerpoints into a videos & upload them to YouTube.
The results are here.
Didier Ruedin 