The Boston OSGEO group has started up and headed by Chris Schmidt. If you are in the Boston Area and interested in GIS in Boston, open source and OpenGIS technologies, this is a group to sign up and get involved in. Signup for the news group at the link below to stay informed. The group tries to meet once a month.
Boston OSGEO Listserve
For more details about it, check out Chris's blog on the subject
OSGeo: Boston Users Group?