While I cannot say for sure what everyone else is seeing, but a very short time ago, I had an addon installed on my computer that was putting ads on sites that don't normally have sites, including search engines such as Google as well as Big Gulp.
Look around the ad and, if some wheres it says, Brought to you by AdChoices, it is not Rodent or whoever looks after this side, it is an external addon that was installed onto your computer and forcing it's code into webpages that you visit.
Hope this clears up any misunderstanding that may be happening.
As a note, at the time of this post, the only ad that I have on my Big Gulp is the following text at the very bottom of the page.
"Hosted for FREE by Boardhost. Create your own free message board!"
The ads are here 'cos of a paperwork error by the board owner. Apparently Snake forgot to update his credit card info. I'll check with him as to what's going on with that.
