If you visit Boston, check out the Sunset Bar and Grille (lots of beer choices, it is overwhelming...) and The Publick House (1600 block, Beacon Street). My favorite of those is the Publick House. The Publick House has a great selection of Belgian Beers.
Also, there are some great Breweries throughout New England. We just went to a Brew Pub up in the white mountains, in Lincoln, New Hampshire... and there is a Brewery in Portsmouth, NH that has a restaurant (Portsmouth Brewery), and one in Nashua, NH (Martha's Exchange). You don't need to restrict yourself to Boston. I am sure there are lots of others. Of course there's Sam Adams in Boston.
I should also mention that Anchorage, Alaska is known for their beer. We had fun in their brew pubs when we were out there.
Last edited by KatherineH; 03/19/07 09:27 PM.