Originally posted by the Voice of America. Voice of America content is produced by the Voice of America, a United States federal government-sponsored entity, and is in the public domain. China Blocks Access to LinkedIn Networking Site VOA News February 25, 2011 China has stepped up its policing of Internet usage in the country, temporarily blocking access to [1]LinkedIn, the largest networking site for professionals, as well as searches for the name of the U.S. ambassador. The networking site went offline on Friday shortly after one user set