Google Video stopped taking uploads in May 2009. Later this summer we’ll be moving the remaining hosted content to YouTube. Google Video users have until August 20 to migrate, delete or download their content. We’ll then move all remaining Google Video content to YouTube as private videos that users can access in the YouTube video manager. For more details, please see our post on the YouTube blog.
Link: http://googleblog.blogspot.com/2012/07/spring-cleaning-in-summer.html