Google Video tips
http://googlesystem.blogspot.com/2006/07/10-google-video-tips.html
Google Video – Link to a Part of the Video
http://googlesystem.blogspot.com/2006/07/google-video-link-to-part-of-video.html
http://video.google.com/videoplay?docid=-6459171443654125383#18m12s