I thought the images below were very interesting.  The first image is the new-Obama White House website home page. The second image is a screenshot of the White House from when George Bush originally took office. The final picture is the home page from when Clinton took office.

(Screenshots courtesy of USA Today article: http://blogs.usatoday.com/ondeadline/2009/01/with-the-new-pr.html?loc=interstitialskip)