This document discusses gamifying e-commerce websites. It defines gamification as using game elements like points, rewards and leaderboards to engage users. Gamification is important for e-commerce sites because there are over a billion websites and users won't care about a site unless it provides something engaging. Examples of gamified e-commerce sites include eBay's bidding system, Teleflora's social loyalty system, and Karl Lagerfeld's Pac-Man inspired shopping game. Gamifying e-commerce sites can increase engagement and lead to benefits like higher conversion rates and sales.