Social Networking Sites As long as social networking sites are mentioned, naturally, several kinds of sites flash into my mind. It's quite reasonable because nowadays we cannot live without these sites. They play a very important role in our everyday life. At the beginning, chatting tools like QQ and MSN have become a indispensable part for most people. They are used to chat with our friends, family and colleagues. Conveniently and immediately, people can get your messages. That is why these tools are so popular. Besides, Blogs like HJ blog and Micro blog can be count in a social networking sites. Different from QQ and MSN, the functions of them do not be limited into chatting tools, but an approach to release information ranging from latest news to self opinions, which is more integrated. At last, with social networking sites based on our circles of friends such as Facebook and Renren, we can keep connection with our friends easily and tightly however distant among us. To sum up, social networking sites have established another kind of social life---the cyber or online social life for us. By making full use of them, even the longest distance will be shortened in no time. PLease modify this piece of writing for me, thanks a lot!