Facebook Home, the lock-screen replacement that changed any Android handset into a "Facebook phone," wasn't as popular as CEO Mark Zuckerberg had hoped. Fortunately, however, its other mobile efforts have proved tremendously successful. Continuing on their success in the mobile space, the social networking giant's second quarterly results reported around 1.07 billion active mobile users a month as of June 30th, which is an increase of 31 percent compared to last year and a slight climb over last quarter. What's particularly notable is that of the $2.68 billion the company made from advertising this quarter (it made a tidy sum of $2.91 billion overall), 62 percent of it came from mobile ads. That's definitely higher than the 41 percent it made from mobile ads this time last year, and is on trend with what we saw earlier this April.