Anatomy of a Malware Ad on NYTimes.com - Inputs & Outputs (Troy Davis, Seattle)
troy.yort.com
troy.yort.com
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.
'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 ?