Peepcode
Not that I get any kickback from this, but if any of you don't know about Peepcode ( http://www.peepcode.com ), they make ruby on rails screencasts. I've bought most of them myself, excellent quality and value.
1 comment
Sketchcast.com
I love it. Definitely not a mainstream tool, but for those occasions where you’d like to blog about a concept, or try to explain something a little more esoteric, I can see this being tremendously useful.