http://en.wikipedia.org/wiki/Arginine

http://www.l-arginine.net/

http://altmedicine.about.com/cs/herbsvitaminsad/a/Arginine.htm

http://www.mayoclinic.com/health/l-arginine/NS_patient-arginine

http://www.drugs.com/npp/l-arginine.html

http://www.bodybuilding.com/store/arginine.html

http://www.themenschoice.com/LArginine.html

http://www.vitaminherbuniversity.com/topic.asp?categoryid=3&topicid=1104

http://www.modernaging.com/GNCLArginine.html

http://www.smart-publications.com/sexual_health/l-arginine.php