Facebook has announced a rise in net income for the second quarter of this year of almost 140 percent.
Revenue from advertising, which makes up most of Facebook's income, was up 67 percent on the same time last year.
The vast majority of the company's 1.32 billion active users every month are on mobile devices.
Aidan Donnelly, from Davy Stockbrokers, says mobile advertising is driving Facebook's growth:
