Cornell Webpage on the Constitution
The superb Cornell Univ. website (I subcribe to their email alert system, which emails you the syllabus of each Supreme Court ruling the day it comes out) has added a set of pages on the Constitution and Bill of Rights.
Checking out their Second Amendment page, I was pleased to find it as comprehensive as one might desire in such a page, and far more impartial than I had expected.
When matters are summed up with reasonable impartiality, though, a pattern emerges which seems unique to the Second Amendment. The vast bulk of serious legal scholarship goes one way, and the vast bulk of caselaw the other. I can't think of an area of law where you have this pattern, at least in a division this sharp and broad -- what does an amendment mean, rather than the fine details of its application to specific facts.