Mayo Clinic

For its world-class care, the famed Mayo Clinic attracts patients from all around the world. Similarly, its website is a trusted, expert-driven resource that millions of people look to for health and medical information.

A symptom tracker, well-organized disease and condition information, medical and health suggestions, and the latest in medical science and research can all be found here. Unlike many other symptoms tracker websites, the Mayo Clinic provides sober, research-backed information that is less likely to cause worry than others.

Detailed information:

Focus: Medical and health info

Twitter: @MayoClinic

Website: mayoclinic.org

Facebook: facebook.com/MayoClinic