Facebook (FaceBook briefly FB), the company created a website, Facebook, is that on February 4, 2004 came into existence. From virtual social network is to broker it can be with friends who have account in Facebook are photos, videos or messages shared. Facebook now to be free at the disposal of the people of the world are located.

website Facebook has over eight hundred million users are now up to 40 languages, including Persian, accessible and has 70% of its users outside of the United States.

environment, Facebook, in fact, the Chamber of friends and acquaintances, a user poses comes. Facebook offer the possibility of recruits in number. to allow users at every moment, new friends to set your friends added.

users on Facebook, has a personal page. Can the group established themselves, or in groups of other members. Users can for their photo album of their choice, and people to the list of friends added.

users can, for an artist, or a website or personal blog, and maybe also for the item that they produce a page separate design and the work of others, both in its member pages are suggestions and criticisms to provide.

Facebook users for you to five-Group Classification..... Friends, Friends, Friends, members of the network., The Strangers and the users who might, depending've(should've).

Facebook software, and. tools, side-special and games online there are many the user can according to their needs from it's use.(On Facebook, with the name of the Apps is remembered.)

Julian Assange founder of the website WikiLeaks, says:

"Facebook hate the most spy tools which have been created. Everyone that the name and profile of your friends to social network Facebook adds should know that in a free form in the service device, the information of the United States and these treasures of information for them to complete."

According to him, Facebook is a treasure of information very big of, the name and history of the people that its users to form voluntary at the discretion of the social network are, but this tool by security devices, and American intelligence about the operation to be placed. Access the device information to the information stored on Facebook, it's a tool, dangerous replica.