This document compares key metrics of Facebook and Twitter for Q1 of 2014. Facebook had 1.28 billion monthly active users, an increase of 15% YoY, with 1.01 billion mobile users, up 34% YoY. Their revenue was $2.5 billion, up 72% YoY. Twitter reported 255 million monthly active users and 198 million mobile users, increases of 25% and 31% respectively. Their revenue was $250 million, up 119% YoY. The CEOs of both companies commented that their businesses grew strongly in Q1 of 2014 and are well positioned for continued growth.