Screenr

I just tried screenr.com. I usually use Jing for screencasts, but I think this is a viable alternative for someone who uses multiple computers. If you are at a computer that you typically don't use and need to create a screencast, you might not want to install Jing. Or, maybe you don't the administrative privileges necessary to install new software. If that is the case, you can use Screenr which uses Java. This means you can use it on any computer that has internet access and the latest version of Java. You can see the example I made below.