There are various free video capturing programs available in the market which can help you to capture images appearing on screen or make videos of activities taking place on the computer. With a free video capturing tool you can effectively differentiate yourself from the crowd and increase your revenues. Major search engines like Google, Yahoo, Bing, and MSN regularly features videos on their search results and if you place a video on a video sharing site or in your own website you can get indexed in their search results and get a lot of visitors that you have ever imagined.
I use CamStudio for this purpose and i would recommend you too, as it is free to use and has exiting features.
Download it here!