All of you privacy fiends out there will appreciate this one. In the Android Market's latest update, Google has added the option to remove yourself from targeted ads.
It's a small gesture, but definitely worth taking a look at, especially if you're one who values privacy. I never click on AdMob ads (unless by accident), but it's nice to be able to control your experience a bit more. This isn't getting rid of all ads but, rather, "interest-based ads" that are targeted specifically for you.