I cannot possibly supply all the informational health needs you might have, so I have tried to list a few of the internet resources which I think are most helpful and unbiased:

American Academy of Family Physicians (http://www.familydoctor.org)
American Medical Association ( http://www.ama-assn.org/consumer.htm )
Mayo Health ( http://www.mayohealth.org )

MedScope ( http://www.medscope.com )

CNN Health ( http://www.cnn.com/health ) - CNN provides timely information about health topics.