Jakob Nielsen‘s Alertbox: The Most Hated Advertising Techniques，抽樣數有點少 (605)，而且沒有講到 Sample 的 Group。

不過：

Users have started to defend themselves against pop-ups. The percentage of users who report using pop-up or ad-blocking software increased from 26% in April 2003 to 69% in September 2004, which is an astonishing growth rate.

換句話說，愈來愈多人會使用各種 block popups software。

而由於文中提到 Yahoo Toolbar 可以阻擋 popups software，所以 Jeremy Zawodny 在他的 blog 上也提到了：The Most Hated Advertising Techniques, on Yahoo。