OH well me being an informant can let you all know eh. Hopefully I dont break some contract or anything.
Okay I saw those ads starting to show up on my forum yesterday and was like. WTF?
Then I woke up this morning and checked my mail. I got some mail from Google. Oh boy.
Okay they have changed a lot of things but here is the part that answers your specific question.
"Ads by Goooooogle"
"We’re currently running a test with new branding features on Google ads. You may notice some of your pages displaying ‘Ads by Goooooogle’ ad units. We welcome your feedback on this new look, and we’ll be analyzing the results of this test over the next while."