If you really, really hate looking at ads on the web, you might want to check out Google Contributor. You pick a monthly contribution between $1 and $3. When visit participating sites, instead of an ad, you’ll see pixelated spot over where the ad is with a thank-you message.
Part of the money goes to Google, of course, and the rest towards funding the participating websites. Among the participating sties are Urban Dictionary, the Onion, Science Daily and Mashable.
Right now, you need an invitation to participate, you can ask for one of those by clicking here.