Researching Arguement Topic

My topic is on gun control and here is some sites that i have found so far:

http://www.justfacts.com/guncontrol.asp

http://www.policyalmanac.org/crime/guns.shtml

http://www.nra.org/

http://www.awesomelibrary.org/guncontrol.html

http://hematite.com/dragon/gunintro.html