This document discusses how data from new sources is fueling the datafication of society and how official statistics are adapting to incorporate these new data sources. It notes that a city of 1 million people will generate over 200 million gigabytes of data per day by 2020, with much of it coming from smart buildings, factories, vehicles and other IoT devices. It then outlines three ways official statistics are beginning to use new data sources: 1) basing statistics directly on new sources like social media and sensor data, 2) using new sources to improve existing statistics, and 3) answering more complex policy questions by leveraging large, diverse new data sources.