BigDoor is a company that uses game mechanics to power social engagement and increase user participation on websites. They approach gamification by rewarding users with prestige, recognition, virtual currency and goods to motivate more traffic, posting, liking, and sharing. For one client, Devhub.com, BigDoor doubled the percentage of users posting blogs overnight and increased user actions by 3x after implementing their system. They also helped drive a 2.5x increase in daily active users and 25x increase in liking and sharing for another unnamed client.