Jing - Screen Capture & Casting
I just stumbled upon a new project by TechSmith called Jing. It is an application that works on Windows and Mac that has a complementary web based service. The application allows you to easily create screen captures or screencasts and automatically uploads them to screencast.com and provides a link to the asset on your clipboard for easy sharing.
I can see where this type of service could be very valuable for someone who needed to quickly and easily share information on there computer with someone remotely. Right now the service is free, so give it a try!