I used to use PopUpStopper, but then found PopUp Manager from endpopups.com after a recommendation from Woody's WinXP Watch newsletter. I like it better than PopUpStopper. With PopUp Manager if you click on a link on a page that is supposed to pop up a new window, the manager assumes you want the new window to pop up and let's it...no more holding down the CTRL key to make a new window appear.