Consider the source use recognized authorities. Know who is responsible for the content.
Focus on quality all websites are not created equal. Does the site have an editorial board? Is the information reviewed before it is posted?
Be a cyberskeptic does the site make claims that seem too good to be true? Does it promise quick, dramatic, miraculous results?
Look for the evidence rely on research, not opinion. Does the site identify the author? Does it rely on testimonials?
Check for currency look for the latest information. Is the information current?
Beware of bias what is the purpose? Who is providing the funding? Who pays for the site?
Source: MedlinePlus Guide to Healthy Web Surfing 2012