Well some quick searching turned up several interesting resources that you might want to consider.
First there are several teams in the boston area,
Here is a link to the list on the FIRST website:
http://www.usfirst.org/frc/map/index...st&area=MA-USA
Then there is the boston regional, i'm sure that if you contacted them there are volunteer oppertunities at the event, the website for the regional is:
http://www.bostonfirst.org./index.html
Also a quick google search turned up lots of sites when i searched "Boston FIRST robotics"
Good luck finding your niche in the boston area.