All modern browsers like Firefox, IE6 (SP2), Safari and Opera have integrated pop-up blockers now, so pop-up advertising isn’t making much money any more. So the folks that come up with all the annoying and invasive advertising methods online have figured out how to get pop-under ads working again. (A pop-under is the same as a pop-up except that the new window appears under the main window instead of over it.). Expect to see updates for the various browsers to block these new annoyances sometime soon. Read more at TheInq.
