On the mobile front, in-app ads appear to be gaining traction over display ads thanks to expanding smartphone usage. New research outlines the trend:
advertisers will spend $2.9 billion on in-app advertising this year, while consumers will spend $26.1 billion buying [apps].
A total of 32 billion apps will be downloaded, representing 38% growth over 2011. Meanwhile, the mobile ad network InMobi says the number of ads viewed by mobile consumers grew 21 percent in the first quarter of 2012, to 283 billion total ads.