I highly recommend AdBlocker Ultimate. Very easy to use; easily let ads through on sites you chose to support. Even use it to make Youtube better by blocking the recommended videos that cover the video you're trying to watch.
I've had adblockers in the past that immensely slowed down my sites, especially while in web site development. I don't even know this is running, except for the lack of annoying pop-ups and relentless videos. Good job.
