Obama's campaign has called on supporters to serve as volunteers on this holiday before the inauguration.
Obama will appear at an event discussing a new Web site, USAservice.org, that helps Americans organize or join community service programs.
He will then host separate dinners to honor Republican Senator John McCain, Vice President-elect Joe Biden and former Secretary of State Colin Powell.
The wives of the Obama and Vice President-elect Joe Biden - Michelle and Jill - will host a free inaugural concert for young people to honor military families.
Obama has constantly stressed to his supporters that they cannot depend on change to come from government alone. For true to change to occur, it must also come from the grassroots level, for example, by ordinary people volunteering to improve their communities.
Obama on most minds as NJ marks King Day
Newsday -
TRENTON, NJ (AP) _ With the nation's first black president set to take office Tuesday, Barack Obama was front and center at celebrations marking the Martin Luther King Jr.
Obama Celebrates Martin Luther King
Most blacks say MLK's vision fulfilled, poll finds
