I'm sure some folks have seen this, or perhaps it was posted before... but this was a study released last year by The Harvard Journal of Law and Public Policy entitled, "Would banning firearms reduce murder and suicide? A review of international and some domestic evidence."
This file should be saved by everyone. Good statistics and great information from a very prestigous publication:
I kind of wish that instead of those silly jokes that friends are always spamming me with, that they would instead circulate something meaningful like this.