M$N announced today that it is going to quit selling popup and popunder space to web advertisers. The reason of course is based on their bottom line, not on what their customers want, although M$N says it is doing this because of customer dissatisfaction.
The software giant said on Friday internal research showed customers were growing increasingly dissatisfied with the seemingly ubiquitous offers that appear in new windows when certain MSN Web sites are accessed.

Last week, Microsoft reported in a Security and Exchange Commission document its MSN division generated a $79 million operating loss in the quarter ended Dec. 31.

But revenues jumped 16 percent year-on-year in the quarter to $546 million as it shifted focus on boosting advertising revenue and developing subscription-based services.
Artical here