In the last period, 2017, the largest presented point is Online advertising with Total Revenue of 75.4B. The fastest growing participant in our report is Internet Radio Ad with 91.87% growth in Total Revenue over 4 years between 2014 to 2017. The slowest growing topic is Online advertising with 51.82% growth over the same period. This report represents data points consolidated from 2 sources: BIA-Kelsey and eMarketer