Screenr, a free program that create screencasts. A brief amount of preplanning will help the screencast go more smoothly. First, go through the steps several times, and outline a click path to use for the recording. Checking the microphone level is as easy as speaking in a normal voice and making sure that the colored lights on the audio scale move and that the scale is not constantly in the red. Publishing the screencast is available on the Screenr’s website.
What is a screencast? A screencast is a digital recording of computer screen output, also known as a video screen capture, often containing audio narration. The term screencast compares with the related term screenshot; whereas screenshot is a picture of a computer screen, a screencast is essentially a movie of the changes over time that a user sees on a computer screen, enhanced with audio narration.
Watch the 1 minute video about Screenr http://www.screenr.com/