I have been using Jing for a few months now, and I have to say, I love it! Jing is by Techsmith and it is a way for you to record a screencast and share or take a screenshot and share it. You have a library where you can save it so other can view and download it and/or you can save your screencasts and screenshots on your computer as well. My library so far has screencasts of different topics in Office 2007/2008 and Oracle Calendar. I will be adding more soon about different topics. Here’s the link to my Jing Library:

http://www.screencast.com/users/Angel_B