The Second Amendment upon which all the debate regarding guns in the United States rests is only 27 words but has inspired countless books and articles. Here are a couple of addition sources of information to look at:
Resources from LII at Cornell University
Founded in 1992, the Legal Information Institute at Cornell University has been dedicated to ensuring that the law remains free and open to all. This link will take you to their page on the Second Amendment
Second Amendment Resources from the University of Missouri-Kansas City
Part of Exploring Constitutional Law, a website put together by Douglas Linder at the University of Missouri-Kansas City School of Law. This link will take you to the part of the site that deals with issues on the Second Amendment.
National Rifle Association (NRA)
Founded in New York State in 1871 by Civil War General Ambrose Burnside, The NRA is a non-profit organization dedicated to the promotion of the Second Amendment right to bear arms.
National Rifle Association - Institute for Legislative Action
The Institute for Legislative Action (ILA) is the lobbying arm of the NRA. Established in 1975, ILA is committed to preserving the right of all law-abiding individuals to purchase, possess and use firearms for legitimate purposes as guaranteed by the Second Amendment to the U.S. Constitution.
National Shooting Sports Foundation
Formed in 1961 the National Shooting Sports Foundation is the trade association for the firearms industry. Its mission is to promote, protect and preserve hunting and the shooting sports.
The Citizen’s Committee for the Right to Keep and Bear Arms
Founded in 1971 the CCRKBA is a gun rights organization affiliated with the Second Amendment Foundation (Link).
ATF - Bureau of Alcohol, Tobacco, Firearms and Explosives
A branch of the Justice Department, Bureau of Alcohol, Tobacco, Firearms and Explosives is responsible for the investigation and prevention of federal offenses involving guns, arson, and illegal alcohol and tobacco.
Brady Campaign to Prevent Gun Violence
Founded in 1974 as the National Council to Control Handguns, renamed in 1980 to Handgun Control Inc. and once again renamed in 2001 after Jim Brady who had been shot during the attempted assasination of President Ronald Reagan in 1981, the Brady Campaign is a non-profit Gun Control organization.
John Jay College Rifle Team
John Jay College has a Rifle Team. Click the link above to find out more.
