41.  So every time you log on to different sites , remind yourself that you are supposed to use it for study not for games.

42.  Meanwhile, we can read the latest new from the portal site.

43.  At last, we should not disclose credit card or other financial account numbers on a web site unless the site offers a secure transaction.

44.  Social networking sites such as Facebook, Twitter, BlendAbout and Google are great way to meet new people and learn more about the people you meet.

45.  The research site is NJU.

46.  When coming across any illegal information, ignoring or reporting the site is our best choice to prevent us from it and also a method to purify our network environment.

47.  Today I want to talk about students using social networking sites, such as Renren.

48.  After I attend college, I noticed that social networking sites play an essential role in college life.

49.  I chat with my old friends on the sites, make new friends on the sites, share something on the sites and sometimes picked up message on the sites.

50.  In 2008, there are only 63% of students using social networking sites, while in 2010, the figure grew to 78%.