Resources for researching diseases or drugs of interest

Familydoctor.org
The patient portal from the American Academy of Family Physicians.

Uptodate.com/patients
Free patient portal from UpToDate (with options to pay and get unlimited site access).

NIH.gov
The National Institutes of Health home page, with links for consumers.

nlm.nih.gov
The National Library of Medicine home page, has links to essentially everything the government does in the health arena. Has a mobile app that one can download to learn about prescribed meds and all sorts of things, written for non-professionals.