Journal of the American College of Cardiology
http://www-east.elsevier.com/jac/cur_toc.htm

Journal of the American Medical Association
http://www.ama-assn.org/sci-pubs/journals/most/recent/issues/jama/toc.htm

The Lancet
http://www.thelancet.com

The New England Journal of Medicine
http://www.nejm.org/content/current.asp

Circulation
http://www.edoc.com/amhrt/CIRC/issues.html

American Heart Journal
http://www.mosby.com/Mosby/Periodicals/Medical/AHJ/hj.html

Heart
http://www.bmjpg.com/data/hea.htm

Cardiovascular Research
http://www.elsevier.nl/locate/cardiores

Chest
http://journals.chestnet.org/chest/

American Heart Association
http://www.amhrt.org/

American College of Cardiology
http://www.acc.org/

Nature
http://www.nature.com/

Harvard Heart Letter
http://www.countway.harvard.edu/publications/Health_Publications/hrtns.html