Yahoo has just introduced a new look, format for its groups, something called NEO?. I happen to be one of the lucky randomly selected members. They asked no one, they just did it. There is no way to opt out. It stinks. Instead of the group picture of the tool we now have a picture of out of focus, colored spheres. On another site the tool was replaced with with yarn and cloth, on another it was beads. Very artsy. And yes, we now have advertising.
I finally got through to a real, live, breathing human being at Yahoo. After cutting him off from his prepared explanation about new cars and great options, he did tell me that this is the new look for Yahoo but Yahoo would put my account back to the old format for only $69.99.
It is not broken but it needs to be fixed, do not tell anyone what you are doing, do not give them a way out and then charge a gazillion dollars to stop.
Oh, by the way, it is confusing and does not work very well. I am going to close my account.