news.cnet.com/8301-13739_3-101 ...

"....
Responding to complaints by privacy activists, the White House has quietly abandoned YouTube as the provider of the embedded videos on the president's official home page.
...."

See blogoscoped.com/forum/149170.h ...

Google denies this, saying:

"That report is wrong. The White House decision does not mean that the White House has stopped using YouTube. The White House continues to post videos to its YouTube channel, as do other agencies like the U.S. Department of Education and the State Department. These channels are part of a broader effort within the General Services Administration (GSA) to help federal agencies communicate directly with citizens on YouTube."
googlepublicpolicy.blogspot.co ...

The New York Times has a denial from the White House, too:
bits.blogs.nytimes.com/2009/03 ...