Stuff like this makes adblock an unfortunate necessity these days. You can't trust ad networks, not even on high-profile websites.
I used to make a point of not running adblock or flashblock since I figured that if I was visiting someone's site, they at least deserved to get the ad impressions from it, even if I wasn't clicking on their ads. After repeatedly seeing PDF/SWF exploits pop up on "reputable" sites like Deviantart, though, I pretty much had no choice but to block everything to avoid getting hit by an unpatched exploit.
tradenton.com seems to have a US based registrant.
'adx' in the dom descriptor suggests that these are 'exchange' ads (that's a fairly common label), but there is also an advertising network called AdxDirect, maybe that has something to do with it ?
I used to make a point of not running adblock or flashblock since I figured that if I was visiting someone's site, they at least deserved to get the ad impressions from it, even if I wasn't clicking on their ads. After repeatedly seeing PDF/SWF exploits pop up on "reputable" sites like Deviantart, though, I pretty much had no choice but to block everything to avoid getting hit by an unpatched exploit.