Kantor on 18 June 2012
I'm getting it too. Very odd.
It has appeared occasionally in the past (though not this often), but I don't think it's an intentional thing; probably just a wayward advertiser.
Give it a couple of hours, and hopefully it will fix itself. I haven't seen it for some time now.
(Former) Lead Moderator and (Eternal) VGC Detective 
