TechSmith has announced its latest versions of Camtasia, 9 for Windows machines and 3 for Macs. Most of the improvements seem to be for recording and editing video.
Screencast is a free web hosting service offered my TechSmith.com for videos and tutorials you can produce with Camtasia Studio, Jing, and Snagit. Snagit and Jing are screen capture programs. Jing, which is free, is a good tool for capturing short videos from websites. You can find tutorials at this website: