The document compares NFL teams' performance on Facebook, Twitter and Instagram over specific date ranges. It finds that the Dallas Cowboys had the largest Facebook fan base while the Arizona Cardinals saw the highest fan growth. Across social media platforms, the Denver Broncos published the most posts and the New England Patriots had the highest engagement. The Patriots also received the most likes, comments and shares on Facebook. The document analyzes teams' social media strategies and provides metrics on their posts, followers, hashtags and response times.