The Obama campaign is pitching a new online calling tool, which enables people to call their Republican representatives or, if you live in a blue area, to call fellow Obama supporters in redder pastures and urge them to get on the phone. That's pretty sophisticated activism.

For the first time since his inauguration, President Barack Obama is flexing his electoral muscle, urging supporters to organize and vote for New York...

President Obama will kick off an all-out grass-roots effort today urging Congress to pass his $3.55 trillion budget, activating the extensive campaign...

Obama tapped his email list to organize support for the economic stimulus on Friday, the first attempt by Obama's aides to formally rally his campaign supporters behind his legislative agenda.

If nothing else, this week the city of Washington was Obamafied. People went not just to celebrate, but to bear witness, to be together, to physically join the concise ritual of swearing in the president.

Barack Obama campaign manager David Plouffe is asking supporters how to keep their network going now that the election is over, TechPresident reports....

Obama's team wants everyone to know -- this massive list of energized activists is the biggest stick Obama will carry in Washington.