Yahoo mail ads
The current ad popping up next to my mailbox that expands to cover half the page is annoying beyond my ability to articulate. It makes reading anything very difficult and it makes typing an email almost impossible. Every 5 second I have to click the x to get rid of the thing. The fact that it is for ****** cancer does not make this a good idea. It makes me resolved to never, ever give another dime to that organization and to immediately look for another email provider. You are a pack of greedy incompetents.