Kooha is a simple screen recorder with a minimalist interface. You can just click the record button without having to configure a bunch of settings. (GPL)
Linux
Peek creates animated GIF screencasts using FFmpeg and ImageMagick. It was built for the specific use case of recording screen areas, e.g., for easily showing UI features of your own apps or for showing a bug in bug reports (GPL)
Linux
SimpleScreenRecorder is a screen recorder for Linux. Despite the name, this program is actually quite complex. It's simple in the sense that it's easier to use than other screen capture programs. (GPL)
Linux
4 applications