• http://www.seo-theory.com/ Michael Martinez

    Great. Now we can look forward to having ads chase us around the screen. Just wonderful.

  • Pat Grady

    How does one click on an unviewable ad?

  • Amy Gesenhues

    Pat, if less than 50 percent of an ad can be seen and/or if the ad is on the screen for less than a second, it is considered “unviewable” by IAB’s standards.