On Google.com, there is a special logo for Martin Luther King, Jr. today for the official holiday celebrated for his life.
Google's Doodle, as always, works in Martin Luther King's face into the Google logo with nice colors and an glowing pride.
Here is this year's Google logo for Martin Luther King day:
Google has had a Martin Luther King logo for the past several years and we've documented most from today and through:
Bing has a theme up today for the day:
Sp does Dogpile but not Yahoo:
Forum discussion at Google Web Search Help.