Facebook now has more than one billion users but future commercial success depends on monetising the growing consumption via mobile devices, which are replacing the PC as the main method of access

Facebook’s new mobile ads are newsfeed based Sponsored Stories and Promoted Posts rather than banners; early agency performance feedback is positive

Rapid growth in mobile ads will not be sufficient to offset slowing growth from PC-based advertising in 2012 and 2013, but revenue growth should pick up in 2014 as mobile ad volumes ramp up and other initiatives kick in

Around 125m smartphones were sold globally in Q2, up over 30% from Q2 2011. Around 450m mobile handsets were sold in the quarter, giving smartphones a volume share of around 28% Apple and Android dominate with a combined of 85% of units sold, and a cumulative total of 810m devices running their mobile platforms. Of these we estimate that 680m are active, of which 95m are tablets Android arrived later and has grown faster, but Apple’s market share of smartphones as been steady at 20-25% for several years: Android’s growth has come at the expense of Nokia, RIM and feature phones

According to IABUK/PwC, internet advertising grew 14.4% like-for-like in 2011 to £4.8 billion, overtaking press to become the single largest advertising medium

Search was again the main growth driver, surging 17.5% to £2.7 billion last year, while display rose 13.4% and classifieds increased just 5.2% on the weak economy

We now forecast internet advertising will increase 14% in 2012 and 12% in 2013, taking spend to £6.1 billion or 36% of UK advertising, up from 30% in 2011