Although it sank slightly from a record $8.8bn revenue recorded in the final quarter of 2016, Facebook’s latest earnings report will have pleased investors, beating analysts’ expectations. On a year-on-year basis, Facebook’s growth is still stunning, with revenue climbing 49% and profit by 76% on the same period last year. Most of Facebook’s revenue is from advertising, but it’s mobile advertising in particular which has seen it soar ever since it started selling it. Facebook launched advertising on its mobile platform in 2012, and this has accounted for 90% of its revenue growth since. As of last week’s quarterly report, Facebook’s mobile advertising revenue stood at $6.68bn, while desktop advertising delivered just $1.18bn, and payments a measly $0.18bn. This means that a whopping 83% of the company’s total revenue is driven by its presence on smartphones, making it perhaps one of the world’s biggest winners from the dawn of the mobile ‘Golden Age’.