It’s kind of interesting to find that douban.com is useful for gathering people with same topics together.
Douban is a website that allow people to exchange ideas, opinions and other information related to books, music and movies. By using the statistical data from user rankings, top popular publications are iterated in its frontpage, so good songs, novels and movies are introduced. In other words, the contents of the website is an outcome of community collaboration. By specifying one’s location or interest, related audio-visual product or publications which might be interesting to the user are recommended. It guesses your taste!
Other than that, it integrates discussion boards and social networking into itself. Are you from Shenzhen and living abroad? Come to join From Main Street To Shen Nan Dao at Douban. Leave your footprint there.