.

Google. google.comYahoo, yahoo.comYouTube, youtube.comFacebook, facebook.comWindows Live, live.comMSN, msn.comWikipedia, wikipedia.orgBlogger.com, blogger.comBaidu.com, baidu.comMySpace, myspace.comIdeal

.

2004Q1

.

Q3nonoyesyesyesnoyesno

.

2005Q1nonoyesnononoyesno

.

Q3nononoyesyesnonoyesno

.

2006Q1nononoyesyesyesnonoyesno

.

Q3nonoyesyesyesyesyesnonoyesno

.

2007Q1nonoyesyesyesyesyesnononono

.

Q3nonoyesyesnoyesyesnoyesno

.

2008Q1nonoyesyesyesyesyesnoyesno

.

2009Q2nonoyesyesyesyesyesyesnoyesno