I sometimes post about things that make people mad. Sometimes it's because they disagree with my politics, or my stance on pseudoscience, or the idea that I think science-based medicine is better than quackery.
No matter what you think or believe, there is something on the web that will make you angry. When this happens, I suggest you peruse the web comic "So you're MAD about something on the Internet..." by Rosscott, Inc (NSFW drawings and perhaps language if you're tetchy). That way you can rate where you stand with the Flowchart of Internet Argumentative Spittle-Flecked Keyboard Banging Trollery.
They're selling posters of the comic, too. I can think of lots of places it should be hung prominently...