InsideGoogle reports that � Internet Explorer 7 Breaks AdSense. The most interesting part is here:

There is one possibility: that IE7’s new security features block AdSense by decision, some security default that blocks certain types of JavaScript

This would be really funny (and a HUGE mistake from Microsoft). Remember when web developers would add a “IE required” link in their pages, and were willing to break compatibility just to make their life easier? I expect to see a lot of “Too Cool for IE” banners if site owners are not able to cash out IE pageviews…