China has 457 million Internet users, more than other country in the world. If you look beyond that number, you can learn a lot about China's netizens. More than 30% are students and more than a quarter are rural residents, living far from the booming cities of Beijing or Shanghai. Gaming and instant messaging are still very popular, but Internet users are increasingly undertaking e-commerce activities like banking or shopping. Kristie Lu Stout looks at the profiles of three different Chinese netizens to explain who's online in China and how they are spending their time.