Glad we could help Osteogal (and thanks BTW, for the mommd URL).
As an Osteopathic student (I'm assuming from your name) you can participate in either the osteopathic or allopathic match. Just because I was curious, I did a search on FREIDA (the AMA resource I listed in my first post) and selected only FP programs, in New England which offered Shared or Part-time Residencies. These are the results:
Family Practice
University of Connecticut Program
Hartford, CT 120-08-21-076
Greater Lawrence Family Health Center Program
Lawrence, MA 120-24-21-528
University of Massachusetts (Fitchburg) Program
Fitchburg, MA 120-24-31-159
University of Massachusetts Program
Worcester, MA 120-24-21-160
Central Maine Medical Center Program
Lewiston, ME 120-22-11-153
Eastern Maine Medical Center Program
Bangor, ME 120-22-12-152
Maine-Dartmouth Family Practice Program
Augusta, ME 120-22-22-151
Concord Hospital Program
Concord, NH 120-32-31-557
Dartmouth-Hitchcock Medical Center Program
Hanover, NH 120-32-21-551
The numbers following each are just NRMP program numbers. Anyway, its worth taking a gander at your field of interest and selecting for those that offer Shared Residencies.
Good luck!