Obama's USA Service site.
"In 1994, Congress transformed the Martin Luther King, Jr. holiday into a national day of community service to further commemorate a man who lived his life in service to others. As a tribute to that legacy and the very real needs of our nation, the President-elect and Vice President-elect have launched a national organizing effort on the eve of their Inauguration to engage Americans in service. This national day of service will fall on Martin Luther King, Jr. Day, January 19, 2009 and, unlike past calls to service, President-elect Obama is calling on all Americans to do more than just offer a single day of service to their cities, towns and neighborhoods. He is asking all of us to make an ongoing commitment to our communities. Never has it been more important to come together in shared purpose to tackle the common challenges we face."