Northampton: The Empty Bell - A sanctuary for the study and practice of Christian meditation and prayer giving special attention to the Christian-Buddhist dialogue. The Empty Bell is also a center for the study of the shakuhachi and the musical practice of Sui-Zen. - http://www.emptybell.org/
Boston Chapter - Buddhist Peace Fellowship - The Buddhist Peace Fellowship explores direct personal and group responses to the political, social, and ecological suffering of our world - http://www.bpfboston.org
Cambridge: Harvard Buddhist Community - Offers daily morning meditation, social evenings, hosts well-known dharma teachers from around the world, and celebrations of the two major Buddhist holidays. - http://www.hcs.harvard.edu/~hbc/index.php