This morning the IAB released Q2 and 1H 2013 mobile ad revenue figures for the US market. Total revenues were $20.1 billion compared with $17 billion a year ago. Mobile ad revenues were just over $3 billion vs. $1.2 billion during the same period in 2012.
That represented growth of 145%. Mobile was 15% of overall digital ad revenue in the first half.
Total mobile advertising in 2012 was just under $3.4 billion. This year mobile advertising should come in at over $6 billion. The holidays should give mobile advertising a substantial boost however it's likely to remain about 15% of total online advertising for 2013.
The IAB has stopped trying to estimate subcategories of mobile as it did in 2011. Mobile search is the largest ad sub-category of mobile spending and probably exceeds 50% of the total. Display is second followed by video and other ad categories (SMS based advertising or marketing continues to fade). Search and mobile display represent the mobile ad spending.
While consumers spend 80% of their time in apps, apps don't represent 80% of the mobile ad spend -- given the dominance of mobile search, which mostly happens via a mobile browser.
The top three overall online advertiser categories were Retail (20%), Financial Services (14%) and Automotive (12%).