Reuters: Businesses are set to spend more on mobile Internet advertising than for ads seen via desktop computers for the first time in 2017, forecaster ZenithOptimedia said on Monday, a year earlier than it had previously predicted. Zenith said it expected companies around the world to spend $99.3 billion on mobile Internet advertising in 2017, or 2 percent more than the amount it expects to be spent on ads seen on web pages on desktop computers.