Provides advice and answers from doctors located in Nairobi, Kenya. Also publishes a newsletter and other health-related resources. Registration is required to ask a question.

Mayo Clinic specialists answer select medical questions.

Provides an automated symptom advisor as well as 24-hour phone hotlines to ask a registered nurse for advice about your symptoms.

Provides free safety advice and answers questions on safety, hazard, and accident causation and prevention.

Provides archives of user questions and doctor answers, as well as the ability to ask new questions, free of charge. Includes a special section for questions about cancer, as well as search tools, registration, and FAQ.

Previous answers and easy access to personal advice and information at your request from Dr. Suneel Sharman.

A pharmacist provides answers to user questions submitted via email. Topics cover all areas of prescription medicines including indications, allergies, interactions, warnings and others.

Get answers to pregnancy, preconception, and parenting questions.

Anonymous health questions and answer service.

Ask diabetes questions to a panel of experts as well as the community.

Receive free medical consultation and advice from a panel of medical doctors, nurses, or experts in all medical specialties.

Physician-moderated discussion board for the exchange of technical information and expertise in interpreting test results.

Harvard Medical School and University of Pennsylvania Dental School specialists answer visitors' health-related questions.

Post health questions to University of Maryland experts.

Experts answer readers' questions on a variety of health topics.