Detecting logical fallacies

Understanding how to detect logical fallacies in others' reasoning helps with developing critical thinking and analytical skills, reasoning, and constructing your own arguments in essays. It is a good idea to see where and how fallacious reasoning occurs, what types there are, with some illustrative examples. Two useful sites for providing examples of fallacies in reasoning are: 

1. Fallacy Files. org site. Do check out the siteowner's rationale for studying fallacies, and why they are useful for developing critical analysis skills...
http://www.fallacyfiles.org/introtof.html

2. One of the best web pages I have seen is this wikipedia page. Caveat about the unreliability of wikipedia as a resource, especially for academic purposes, for various reasons, applies. However, I do believe this functions as a useful tool on an informal level. Do check out the ad hominem fallacies, appeals to authority, circular reasoning, affirming the consequence, non sequiturs, false dilemmas, correlation equals causation, and psychologist's fallacy in particular http://en.wikipedia.org/wiki/List_of_fallacies