I'm pleased to see Greg Notess has been posting again at the LibCasting blog. The other day he pointed to FreeScreencast.com, which offers the software and online hosting, much like Jing. I haven't tried FreeScreencast or TipCam (note, TipCam appears to be dead now - Oct, 2013), which does the exact same thing. There are examples on each of their sites though, and the output looks pretty good - check them out!
Technorati Tags: Screencasting, Jing, FreeScreencast.com, TipCam