As a Chinese student, you probably have a number of questions about study methods or language specifics. For example, what are the best Chinese textbooks, where are the best schools for Chinese immersion, or how do you translate certain words or concepts into Chinese?
One good site for interacting with other Chinese students (and that includes socializing or getting opinions or advice) is Chinese-forums.com.
In addition to the message boards the site also has, at last count, 46 blogs.
The site is quite active too. I see there have been 36 entries made in the last 24 hours.