Medical Sites.

1) www.nejm.org
2) www.clinicalcases.blogspot.com--- check this out, it's very interactive site with lots of other useful links...
3) www.studentbmj.com,
4) www.xenomed.com
5) www.who.int.org.--- reach out for who articles, database and free stuffs available for students in developing countries.
6) www.hinari.com--for online research database
7) www.studentconsult.com--- for those students who'd buy elsevier series of textbook and want online reference to those textbooks,, but u must register first.
8)www.pubmed.com-- for indexed american database of medical research around the world.
9)www.healthnet.org.np---it's a good site, specially for nepalese students, u can find out research papers from nepali professors, no less u can still surf for the international health research as well.
10)www.bloodjournal.org
11)www.chemoregimen.org
12)www.medscape.com
13)www.uptodate.com
14)www.bmj.com
15)www.binayfoundation.org
16)www.epernicus.org
17)www.nccn.org for oncology
18)www.thoracic.org of American Thoracic Society
19)www.idsociety.org for Infectious Disease Society of America.