Engages in tracking visitors - even if you didn't initiate the "visit" This service partners with advertising / marketing sites which force new browser windows to open "under" your current window. I just closed not 1, not 2, but 17 identical pop-unders to the point I [red]rated[/red] this domain for these unscrupulous ad "campaigns" Not to mention the tracking cookies / web beacons, etc ...
example pop-under URL:
EXTREMELY annoying Popups! Can't get to the info needed for those all too numerous popups that open way too many windows in your browser all at once no matter what browser you have or how many popup busting settings/add-ons are installed.