2013 update: note, this may no longer work. I am keeping the post, but you may want to look for a more current blog posting on this topic.
You might not be able to tell from this title, Silicon Valley Users Guide: How to avoid being a Facebook shill like VC David Sze but this article tells you how to modify your facebook settings to turn off annoying ads.
Don’t worry, most people won’t. And even if they did, well don’t worry: coming up with new ways to direct advertisements to you keeps marketing folks in work.