12 screencasting tools
http://mashable.com/2008/02/21/screencasting-video-tutorials/
This is an article from Mashable on 12 screencasting tools. They have divide the article into free and commercial products - this is very useful. But its fair to say they have missed probably the best tool I have found which is Techsmiths Camtasia, which was a little suprising.
This is however a good article and a useful series of resources. Here are the free ones:
