At the risk of blowing my own trumpet I thought I’d publicise the fact that I have now a small but growing collection of screencasts hosted on ScreenCast.com in a special Learning Lab folder. I also just noticed that Screencast.com allows subscription to this collection with iTunes and RSS. The latest upload is a Blackboard tip that you’ll find in @the.coalface.
The screencasts themselves are just a shockwave flash so presumably they could all be hosted on the Swansea University media server, but the use of external hosting is just so convenient.