Transit Links
 

NETransit: The New England Transportation Website - http://members.aol.com/netransit/index.html

Scott Moore has a great website here.  It has a wealth of info on transit in general, particularly the T.

Boston Street Railway Association - http://members.aol.com/bsra5706/

The BSRA has meetings monthly in Boston.  There's nothing these guys don't know about Boston area transit.

Massachusetts Bay RR Enthusiasts -  http://www.MassBayRRE.org