I was recently turned on to this great article called "Conversational Terrorism". For anyone that spends any amount of time online, it’s a must read.
Her’es a snippet of the intro:
First, we have the Ad Hominem Variants where you attack the person as a way to avoid truth, science, or logic which might otherwise prove you wrong. Next are the Sleight of Mind Fallacies, which act as "mental magic" to make sure the unwanted subject disappears. Then, we move on to Delay Tactics, which are subtle means to buy time when put on the spot. Then, the ever popular Question as Opportunity ploys, where any question can be deftly averted. Finally, we have the Cheap Shot Tactics and Irritants, which are basically "below the belt" punches.