Buddhist Association of the United States
http://www.baus.org/

Yin-Shun Foundation
http://www.yin-shun.org/

Buddhism Study and Practice Group at SUNY StonyBrook
http://www.sinc.sunysb.edu/Clubs/buddhism/

Buddhist Compassionate Relief Tzu Chi
(North America Collegiate Network)
http://www.ustzuching.org/