After several false starts, mobile advertising has now truly taken off and is forecast to account for 37% of all growth in global ad expenditure this year, and 31% in 2014, according to a recent report by ZenithOptimedia.

Mobile advertising (defined in the report as internet ads delivered to smartphones and tablets, whatever their format) is still relatively small—with a total spend of $14.3 billion worldwide this year, or 2.8% of total ad expenditure.

However, it is growing extremely rapidly: 77% growth in 2013, followed by 56% in 2014 and 48% in 2015, ZenithOptimedia forecasts. By 2015, mobile ad spend is expected to total $33.1 billion and to account for 6% of total ad expenditure.

Below, additional key findings from the September 2013 Advertiser Expenditure Forecasts.

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ABOUT THE AUTHOR
image of Ayaz Nanji

Ayaz Nanji is a digital strategist and a co-founder of ICW Media, a marketing agency specializing in content and social media services for tech firms. He is also a research writer for MarketingProfs. He has worked for Google/YouTube, the Travel Channel, AOL, and the New York Times.

LinkedIn: Ayaz Nanji

Twitter: @ayaznanji