The document discusses how to critically evaluate scientific sources and separate fact from fiction. It notes that while the internet provides access to millions of sources, it is important to evaluate where information comes from. It provides tips on assessing the authority, validity, bias, and currency of sources. Key factors include an author's credentials, research design, acknowledgement of other viewpoints, persuasive devices used, funding sources, and publication date. Blogs specifically require caution due to lack of editorial oversight and potential for bias. Being able to critically evaluate information is an essential skill in today's digital age.