The document discusses determining the credibility of sources when conducting research online. It provides tips for evaluating sources such as checking if the author is a recognized expert, if multiple sources confirm the information, and if the source has biases. The document also recommends specialized search engines like SweetSearch and FindingDulcinea that curate reliable newspaper articles. Certain domains like .edu, .gov and websites from reputable organizations can also be more trustworthy sources of information. Students are advised to exercise critical thinking and verify facts from multiple credible sources.