According to a new study released from eMarketer, desktop-based advertising will peak in 2014 as more spending goes towards mobile advertising. The study suggests that U.S. desktop advertising will reach $35.39 billion in 2014, but by 2015 that number will begin to drop and by 2017 the figure will be $32.51 billion, which is nearly identical to numbers posted in 2012. Simultaneously, mobile advertising will continue its meteoric rise, hitting $11.76 billion this year alone. And by 2017, Mobile will almost equal desktop, reaching $27.98 billion. So far, Twitter has benefited the most from the mobile transition; the company will make more money from mobile advertising than from desktop advertising last year and mobile will take a bigger and bigger share of the company’s profits through 2015.