The document summarizes key internet trends from 2015. It notes that while global internet and smartphone user growth remains solid, the growth rate is slowing as adoption increases. It also discusses the shift to mobile internet usage and engagement, with time spent on mobile devices surpassing desktops. The document outlines trends in areas like online advertising, mobile monetization, and new advertising formats optimized for mobile engagement. It also covers how enterprise technology is being reimagined by startups addressing pain points in areas like communications, payments, analytics, and document management.