Jing is a free screen-capture download that allows you to
take pictures or videos of what is on your computer screen. Jing is a
product of TechSmith - the same company that provides Screencast.
The Jing tech tool allowed me to make several of the tutorials here at this site.

Here's a YouTube tutorial by webuildyourblog:

Other online tutorials/info:

http://www.youtube.com/watch?v=RQdfG-X1x1Q

http://www.youtube.com/watch?v=WTz5sehAxN4&feature=related