Using the internet to research health issues can be a useful tool. But beware, as some websites may contain unreliable information. A search for a condition such as cancer can bring up thousands of results, so how can you determine which websites are the most trustworthy?
The information should be:
It is also useful to search for the website's Sponsorship / Editorial policy. For example, WebMD's policy on sponsorship and third-party content is clearly explained here.
Similarly, MedlinePlus states in its Quality Guidelines that it has "clear differentiation between content and advertising... advertisers or sponsors must not play a role in selecting or editing health information."
Here are some sites that offer free (but credible) health news and articles online.