ad.doubleclick.net to your hosts file to block it. Or try ABP (adblockplus) if you have Firefox.
Kees
For at least a week, when I access the forums for the first time, I get a hanging page. The whole page freezes and the only out is ctrl/alt/del. Note the picture, at the bottom, it's always that ad.doubleclick.net link. After I force the close, all pages load normally.
http://www.wayne2.net/hang.jpg
Chowhound
Comic Vine
GameFAQs
GameSpot
Giant Bomb
TechRepublic