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

http://www.arginineaminoacid.info/

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

http://www.vitalhealthzone.com/nutrition/amino-acids/arginine.html

http://www.arginineresearch.com/ClinicalBenefits.htm

http://www.dietaryfiberfood.com/l-arginine.php

http://www.healthvitaminsguide.com/aminoacids/arginine.htm

http://www.springboard4health.com/notebook/proteins_arginine.html

http://www.shopping.com/xGS-Amino_Acid_Arginine

http://www.vitamins-supplements.org/amino-acids/arginine.php

http://www.arginineresearch.com/Index.htm