this blog, which was interesting to read/watch, because the author is Canadian (so there are definitely a few differences in pronunciation). I know my accent probably doesn't come out as strongly in this video, but seriously, you get me going (especially at work), and the New England-y sounds come out. I can't say I have a Mass. accent any more, but my way with words hasn't quite formatted itself to the Mainer ways, so I tend to just say I sound like I'm from New England.
Anyway, go ahead and take a listen and let me know what you think! Oh, and please excuse the sort of creepy internet stalker lighting, my webcam blows.