Google and Facebook Account for 69% of Mobile Ad Revenue
eMarketer's data shows how heavily concentrated the mobile ad market is. The Top 5 ad publishers account for three quarters of the global total and, perhaps even more impressively, Google and Facebook alone are expected to pocket 7 out of 10 dollars spent on mobile advertising this year. Facebook's strong mobile performance has helped the company to recover from the IPO disaster as it helped brush away doubts about the company's potential for growth.

Description
The mobile advertising market is heavily concentrated. Google and Facebook alone are expected to rake in 69 percent of worldwide mobile ad revenues this year.