Research firm eMarketer estimates Instagram's worldwide ad revenue will reach $600 million this year, $1.48 billion in 2016 and $2.81 billion in 2017. Instagram will account for 5% of Facebook's worldwide ad revenue this year and 14% in 2017, eMarketer forecasts. MOBILE MINUTES Facebook's chief operating officer Sheryl Sandberg said Facebook and Instagram now account for one in five minutes spent on mobile in the USA. "We had a good quarter and got a lot done," Mark Zuckerberg, Facebook's founder and CEO said in a written statement. Excluding certain expenses, Facebook reported earning per share of 57 cents, up 33% from 43 cents a year ago. Facebook was expected to post earnings per share of 52 cents, up 21% from 43 cents a year ago. Shares jumped 4% in after-hours trading to $107.75, hitting a record. Total costs and expenses increased at an even faster clip than revenue, however: 68%.