Do not underestimate the power of the Internet. In just a few years, it has completely reshaped many parts of our lives, including how we buy goods and how we communicate with our friends. Some websites in particular are global meeting places, and advertisers are investing billions to cash in. The fascinating text examines how social networking sites, such as Facebook, Twitter, and Google+, have become such a powerful presence and the impact they have had on our culture. Readers also learn why online privacy has become one of the most controversial issues.