An authoritative, up-to-date resource from the world's largest medical library, the National Library of Medicine.
Consider the source: Look for an “About Us” page.
Check to see who runs the site: Is it a branch of the government, a university, a health organization, a hospital or a business? Can you reach the sponsor?
Focus on quality: Does the site have an editorial board? Who wrote the content? Is the information reviewed before it is posted?
Is it current? Review websites with current information only.
Is it secure? Does it protect your privacy?
Be skeptical: Things that sound too good to be true often are. You want current, unbiased information based on research.