Here is a current listing of opportunities including contests, grants, and efforts that you can join in Pennsylvania and nationally:
Donate Your Unwanted Bicycles for Students in Ecuador—March 25, State College
http://pachurchesadvocacy.org/weblog/?p=10620
PA Statewide Bake Sale for Public Education
http://pachurchesadvocacy.org/weblog/?p=10595
New Torture Video—Solitary Confinement: Torture in Your Backyard