I’ve just added some tools to the screencast software page, it now lists Sizer, MouseZoom, ffmpeg and GSpot for Windows along with ffmpeg for Linux and Adobe Premiere for Windows and Mac.
More will come as I fill in the list.
To improve your screencasting knowledge you must read The Screencasting Handbook. The author (Ian Ozsvald) also blogs.
New Screencast Tools Added by The Screencasting Handbook - the screencasting tutorial eBook, unless otherwise expressly stated, is licensed under a Creative Commons Attribution-Share Alike 2.0 UK: England & Wales License.