Maybe Mike Walrath, the former Right Media CEO and current Yahoo ad-tech executive, should postpone his move to headquarters. Publishers who run ads sold through Right Media say that the network takes too long to serve their ads to site visitors. How long? 300 to 1200 milliseconds. That doesn't sound like much time, but Google's Marissa Mayer told a conference in 2006 that Google loses 20 percent of its users when the site's response time reaches half a second. Yahoo confirmed the issue when contacted, telling VentureBeat : "With rapid growth, we’ve also faced some recent performance issues with latency of ad serving. We are in the process of resolving these issues. " (Photo by Steven Kreuzer)

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