Here are the some cool links of silver light videos:http://www.microsoft.com/silverlight/video.aspxTo Learn silver light You can download learning videos:http://silverlight.net/learn/learnvideos.aspxAnother one is what we can do the with silver light :http://blogs.msdn.com/tims/archive/2007/06/19/demo-the-power-of-silverlight-video.aspxhttp://blogs.msdn.com/tims/archive/2007/06/20/more-fun-with-silverlight-video-ad-overlays.aspx