MedicinePlus : Learn about your prescription drugs and over-the-counter medicines. Includes side effects, dosage, special precautions, and more. A free service from the National Library of Medicine and the National Institutes of Health.
Link: http://www.nlm.nih.gov/medlineplus/druginformation.html

WebMD : This comprehensive pill identification tool from WebMD allows you to search prescription drugs based on the imprint, color and shape. This free tool is easy to use and works well.
Link: http://www.webmd.com/pill-identification/default.htm

RXList : This extensive pill identification tool from RXList allows you to search for prescription drugs, vitamins and other medication. This is another free tool that works very well.
Link: http://www.rxlist.com/pill-identification-tool/article.htm

National Institutes of Health : Basic pill identification from the National Library of Medicine and the National Institutes of Health. Not all drugs and pill pictures are available, but it is still a good tool for pill identification.
Link: http://dailymed.nlm.nih.gov/dailymed/prdsearch.cfm

Centers for Disease Control: The CDC is valuable resource for information about diseases, their prevention and how to live a healthy lifestyle. Learn about various types of injuries, health in the workplace, and emergency preparedness.
Link: http://www.cdc.gov/

Freedom from Smoking : If you want to stop smoking, the American Lung Association has established their Freedom from Smoking campaign to help you quit. The program has helped more than 1 million people quit smoking.
Link: http://www.ffsonline.org/

SmokeFree.gov : A program from the National Cancer Institute to help you quit smoking and stay quit. Provides you with several tips and suggestions on how to quit smoking.
Link: http://www.smokefree.gov/

QuitNet : Help quit smoking with an online support community of other smokers just like you. Provides expert support, quit smoking resources, and information about various stop smoking medications.
Link: http://www.quitnet.com/qnhomepage.aspx

Symptom Checker : If you're feeling a little under the weather, try this free tool from the Mayo Clinic to help identify what ails you. As always, you should consult a health professional for medical advice, diagnosis and treatment.
Link: http://www.mayoclinic.com/health/symptom-checker/DS00671

Food and Drug Administration : Consumer information on dietary supplements with tips on making healthy decisions when it comes to herbal supplements. Also has information on dietary supplements for those over 50.
Link: http://www.fda.gov/Food/DietarySupplements/ConsumerInformation/default.htm

FamilyDoctor.org: Tips, suggestions, warnings and other information about over-the-counter herbal products and supplements from the American Academy of Family Physicians.
Link: http://familydoctor.org/familydoctor/en/drugs-procedures-devices/over-the-counter/herbal-products-and-supplements.html