Does the reader know that facebook and twitter are avoided in china ?

Does the reader knows that Facebook, Youtube, Twitter, blocker, and many sites are blocked in the country of China .. probably hear this information for the first time .. why blocking these sites? And how are they? Are there ways to break this block? What are the alternatives to these sites?
Blocking social networking site "Facebook" in China since 2009, and back blocking for several reasons, first because of the old Zkralthorat and promote regeneration, and security options privacy in Facebook, as well as criticism of the site and search engine famous "Google" publish "pornography."
But the main reason to prevent China's social networking site "Facebook" access remains the outbreak of violent clashes in mid-2009 between Muslims "Uighur" and police in the city, "Urumqi", which lies north-west of China, following these reasons blocked other sites are very popular, and Twitter, YouTube, as authorities blocked the site "Amazon", due to the sale of the site for the book was banned from publication in China talking about revolutions, where the pressure that if someone bug link writers from China, the site is fully eclipsed for 15 minutes at least.
Duncan Clark, chairman of a consultative bodies, pointed out that the government wants it to do everything in their power to prevent links to information about the outside world countries and also within China.
The ruling Communist Party in China and imposes strict censorship on the Internet, and often posts erase electronic obscure sites deemed inappropriate or politically sensitive. In addition to those blocked sites, China is also prohibit all pornographic sites.
How is blocked in China .. Will be bypassed
The Chinese are keen to preserve the value system of the Chinese community, considering that these sites such as Facebook and Twitter from the point of view that penetrates the value system in which they are serious about it, as China works to block sites that threaten Western culture of the Chinese.
Chinese State considers itself morally responsible for protecting Moatinha of exposure to Western cultural invasion, as there may be other factors, including the closure of the door in front of the West try to use these sites to raise political unrest against the Chinese state.
So a project so-called wall of fire Great China The Great Firewall of china or what is known officially on behalf of the project cover the Golden Golden Shield, and is one of the most technical projects to monitor the Internet and block unwanted sites of others advanced in the world.
This wall reminds us of the Beijing Great Wall, which spanned more than ten thousand kilometers, which was constructed to protect the empire from the successive attacks of the tribes of the north, and today is building an electronic barrier to protect China from new attacks.
In spite of the fact that this project is the largest in the human, but it is not perfect, it is impossible for the fact that blocking Internet content and control is absolute, and which can be overcome by special VPN VPN as is the case for example TOR program, or use a proxy software to change IP IP .
Alternative sites blocked in China
China to block many of the social networking sites is not about futility, State of China sees great importance in not leave its members' personal information between the foreign hands may work day of days to take advantage of this information, what is an important ingredient to maintain national security.
Years ago, signed crisis between «Google» and between China and the two sides exchanged accusations that had been politicized, which continues to subside only after both sides agree on the transfer of «Google» engine service to Hong Kong, where you are directed to him directly if they tried to open the site in China.
But before that the government is working to block those known like Facebook sites, China provide their citizens with many websites alternative, relying on the huge number of Chinese users, who were able to enormous their numbers introduction of these sites, programs and applications in fierce competition with those offered by foreign companies, Among the most important alternative sites, we find:
Chinese search "Baidu" engine, which was launched in 2000 by the company «Baidu» Chinese to be the first search in a country of one billion and a half billion people drive, and also a strong contender for «Google».
And services provided by «Baidu» to its users, which in addition to search engine, find the search for audio and video files and also «Baidu Maps» We also find «Baidu Pike», which is the Chinese version of Wikipedia famous service.
Site «Yoko» is a Chinese alternative to the site «YouTube», The position of «Yoko» is the largest and most important sites that provide lift and Nschermqata video service on the Internet site here in China, and is characterized by the site the possibility of raising the videos is limited, as it allows users to raise the full-length films and full episodes of Chinese and Korean Series and also an American, and allows the site to the Chinese Follow-up many films and serials non-Chinese, because they are accompanied by a Chinese translation of the screen.
Site «Webo» »is a Chinese alternative to the site« Twitter »the governor in China, but the site« Webo », which is the number of users reached 300 million user according to the latest statistics company, provides its users with the same service. The word «Webo» Arabic small entry, according to the site statistics, users write a day more than 100 million small codification, as is «Webo» and «Bloچ Sina» Alternative also Blogger site.
QQ, which is one of the largest chat programs in China program is the alternative programs Conversation famous as msn and yahoo and that the Chinese do not accept to be used, QQ program for each user gives the record the clearing Chinese also exchanged phone numbers, and provides «Messenger QQ» users to text conversations and audio and video, and can be used on a regular computer or smart phones.
The application «Wii Chat» or «Weixin» in Chinese, is the application of the most widely used in China for social networking, where the parent company unveiled a new report showed that there are doing to now 355 million active user and are on the rise, supports «Wii Chat» Service chatting on mobile phones and voice messages are text, images and supports participation among friends and comment on them, also supports the work of private groups to exchange chat Oalsour, the service is closer to the services provided by the social networking site «Facebook» that