inDriver
During the New Year holidays of 2012, the temperature dropped below -45C in the city of Yakutsk, Siberia, in Eastern Russia. As a result, local taxi drivers simultaneously doubled the cost of rides - leaving riders (literally) out in the cold. In response, the inhabitants of Yakutsk created an "Independent Drivers" group on Russia's social network, where people posted ride requests, listed the price they were willing to pay, and drivers accepted their orders. In just six months, more than 60,000 people had joined the group. Not long after, the mobile app inDriver was created to replace the group, allowing passengers to independently set the most optimal terms for their rides. Today, the service is used by 14 million users in 160 cities in 11 countries.