Unplggd is celebrating the birthday of the Reverend Dr. Martin Luther King Jr. today. We hope you take a moment in the day to remember one of the greatest figures in American and world history, perhaps partaking in the 2010 MLK Day Technology Challenge, answering the Reverend's challenge: "Life's most persistent and urgent question is: what are you doing for others?”

Portrait of Dr. King Jr. created by artist Robert Bosch in 12 complete sets of double nine dominoes.