Floating advertisements are another type of ad unit that interrupt content consumption and serve as a barrier to editorial content. These ads may expand from a traditional display unit or materialize as a page loads. Some animated units will crawl across a page, making it difficult to locate and click the close button.
This HP unit found on arstechnica.com adds a creepy detached hand to the unpleasant user experience. Shades of the Ice Truck Killer. At least the Close button is prominent.
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