US: Mobile advertising jumped 145% in the first half, according to the IAB

The IAB has released the Internet advertising report for the first half of 2013 in the United States.

Digital advertising continues to grow and rose 18 % year over year. Mobile registered the biggest increase, with revenues soaring 145% to $3 billion in the first half, up from $1.2 billion in the same period last year. In the United States, mobile now accounts for 15% of digital ad spend.

The full report is available for download here.