Information that always must be cited—whether web-based or print-based—includes:

• Quotations, opinions, and predictions, whether directly quoted or paraphrased.
• Statistics derived by the original author.
• Visuals in the original.
• Another author’s theories.
• Case studies.
• Another author’s direct experimental methods or results.
• Another author’s specialized research procedures or findings.

If you use specific information of the type just mentioned, document it; otherwise you could be plagiarizing. Better safe than lazy. By citing the source of your information you point to an authority rather than ask your reader to trust your memory or what might appear to be your own idea. Even though you can recall a statistic or a description of a process, for example, citation of such information—if it came directly from a source—gives more credibility to your writing and underscores the accuracy, timeliness, and even the potential bias of your information. In short, be honest, smart, and safe.