Screencast-O-Matic - Free online screen recorder for instant screen capture video sharing.

http://www.screencast-o-matic.com/

Screencast-O-Matic is the original online screen recorder for one-click
recording from your browser on Windows or Mac with no install for FREE! One-click screen capture recording on Windows or Mac computers with no install for FREE!

To record, just click: START RECORDING ... Or you can download an application to launch from your Start menu (check out link below, to take you to the site):

Download + Install

Watch a very quick demo here(click link below):
http://www.screencast-o-matic.com/u/h/start-recording