This document discusses how brands can benefit from engaging with customers on social media. It defines Web 2.0 as websites that facilitate user interaction and content sharing. Some main Web 2.0 platforms mentioned are social networks, blogs, and collaborative sites. The document recommends that brands engage in real conversations with customers on social media to build loyalty and gain new customers. It provides examples of how airlines like Air France, British Airways, and American Airlines have used social media to allow user interaction and provide better customer service.