This document discusses evaluating information sources and provides guidance on criteria to consider. It notes that while finding information is easy, evaluating it for credibility and appropriateness requires more intellectual effort. Critical analysis depends on understanding how information is created and disseminated. Different types of resources like journals, websites, books and reference sources must all be evaluated for authority, credibility, currentness and appropriateness. Key factors include an author's credentials, the publisher, intended audience, date of publication, and purpose and scope. Evaluating information sources is presented as a common sense process.