Answer: webmd

AnswerCrossword Clue
WEBMDSurfers' source of health info
WEBMDSite with a Symptom Checker
WEBMD"Better information. Better health" resource
WEBMDSite with "Health A-Z" guides
WEBMDSite with a "Find a Doctor" section
WEBMDOnline health-info site
WEBMDOnline health info site
WEBMDPopular health info source
WEBMDSymptom Checker offerer
WEBMDOnline source for health info