Method used by social networking sites

What is the focus of social networking sites?

What do you mean by social networking? Explain various social networking sites

Online social networking includes much more than facebook and twitter. It os any online use of technology to connect people, enable them to collaborate with each other, and from virtual communities. Social networking sites may allow visitors to send e-mails, post comments, build web content, and/or take part in live chats. What does the passage mainly deal with?

What is the Facebook algorithm

What is social media, and how do companies use it for marketing?