The venture is a partnership of the non-profit Network for Good, AOL and Entertainment Weekly, the organizations said in a news release.
The Web site is built around the game, "Six Degrees of Kevin Bacon," in which players start with an actor's name, and then try to connect that actor with Bacon in six movie titles or fewer by naming a series of movie co-stars.
"SixDegrees.org is about using the idea that we are all connected to accomplish something good," said Bacon. "It is my hope that Six Degrees will soon be something more than a game or a gimmick."
SixDegrees.org builds on Network for Good's system for donating online and AOL's AIM Pages social networking service. Visitors can learn about and support celebrities' charities or raise funds for their own causes.
The site lets non-celebrities make their own badges for their favorite charities, providing others a chance to make online donations. Bacon said he would match the amounts raised by the six top non-famous fundraisers by March 31 up to $10,000.