The title was a bit of an 'in' joke. I was going to present on screencasting as well but it was just going to be toooo much.
As with the VoiceThread I wanted to focus on the why rather than the how of wikis and blogs. So much professional development is about how to put an image in or how to embed content but doesn't address the "show me the educational value" side of the equation.
I got good feedback, other than a couple of people who wanted more time to do the how. Oh well, I guess I will have to organise some follow-up sessions.