Screencasting

Jon Udell's blog has some interesting entries on screencasting. Screencasting is sort of on-line journalism that streams a movie to a browser window while an audio track is narrated. It's easier to understand by seeing an example. Udell has a great example that shows how a wikipedia (on-line encyclopedia that relies on public contributions and corrections for content) entry is made and evolves. I could see educational uses for this.