We've put up a new ad scheme throughout the site since the server move. Before I dive in any further, I'd like to note that ads should go away if you log in--if they don't for you, let an Admin know via PM. Also, remember that the accounts on the forums and the 'pedia are not linked, you have to log in to each separately.
Anyway, while for the most part the ad changes have been going fine, there have been a few reports of inappropriate or otherwise disruptive ads on the pages. This isn't really a new thing--we had a bunch of pretty inappropriate Google text ads served to the 'pedia for a while--but, like last time, we're actively seeking to combat it. We can't filter the ads that come through before we see them, but if there are ads you consider egregious on your screen, you can post screenshots of them in this thread. If we agree that they're over the top, we can actively blacklist that from our list of used ads.
If you can't get a screenshot for some reason, post as much information about the ad as you can--the site name, the overall appearance of the ad, its size, colors, anything you can think of that would help us identify it.
Thanks for bearing with us on this. We'll get the bugs sorted out, it just takes a little time to put a blacklist together.