Earlier this year, Google AdSense launched the Ad Balance tool which let publishers use controls, a slider, to help you reduce the number of ads you show to users, specifically the ads that earn you the least revenue, and see how it affects your earnings.
Well, since its launch, it was plagued with bugs. It was taken down for maintenance several times, came back up and then went back down shortly later several times as well.
Google's official representative in the WebmasterWorld forums has said it has now come back for good. Earlier this week Google said "I did receive feedback from that team, and this feature is indeed coming back, and "hopefully" within days/week from today. Official communications will be sent from that team once it is 100% back up and running."
Well, now everyone, including myself, is seeing this feature, here is what it looks like:
Forum discussion at WebmasterWorld.