other digital channels reports set to grow seven times faster than online worldwide Â $100 billion worldwide latest forecasts latest forecasts $114 billion in 2014 $500 billion TechCrunch TechCrunch more than $500 billion $114 billion in 2014 TechCrunch spend billions of dollars on advertising a $42 billion industry by 2017 $114 billion in 2014 $500 billion digital only gets 22 percent Mobile ads made up 6% or $6.2 billion as has been estimated TechCrunch forecast is close to $ 15 billion all ad spend in 2013 $503 billion digital only gets 22 percent reports INGRID LUNDEN $110 billion on digital advertising reports TechCrunch article