http://www.google.com/logos/mlk08.gif
http://www.google.com/search?q=martin+luther+king+jr.+day

Ask has a background image:
http://a692.g.akamai.net/7/692/809/d102c6510d49b9/sp.ask.com/i/h/mlk/home_mlkjrday.jpg
http://www.ask.com/

Here are the ones for the previous years:

http://www.google.com/logos/mlk06.gif
http://www.google.com/logos/mlk07.gif

By the way, I cannot see that logo when accessing Google.com from Germany, I have to access the US version at http://www.google.com/webhp?gl=us

Or using youhide.com ;)

Nice job by Ask. Nothing from Yahoo!, tho.

<< By the way, I cannot see that logo when accessing Google.com from Germany, I have to access the US version at google.com/webhp?gl=us >>

Same here...

Wonder if ask.com is paying anyone for the use of their photo and/or the MLK estate anything for using his likeness?