Here's another great possibility for some of you marathon runners: run as part of the LIVESTRONG Army!

Click here for details on a Lance Armstrong Foundation partnership with the World Marathon Majors program, guaranteeing several charity spots in the Boston Marathon on 4/16, the Flora London Marathon on 4/22, the Real-Berlin Marathon on 9/30, the LaSalle Bank Chicago Marathon on 10/7, and the ING New York City Marathon on 11/4.

Athletes must raise $3,500 in support of the LAF's mission, and in return, they will receive marathon entry, race gear, an invitation to a pre-race gathering, training guidelines, and fundraising support.