The social networks as Facebook, MySpace and others are all “virtual places” where people find themselves and share information. Nowadays, social networks are the best tools for communication, though in the first place they were used only for university purposes, where students and colleagues stayed in contact with each other after works or studies. What currently has become the subject of many debates are the various effects that these social networks have on human life, effects such as social impact, health issues and business affair.
Some studies imply that social networks could have negative impact on people social health. These can cause people to stray from reality and immerse themselves in the virtual world of social community. “Instead of meeting people in person, they spend more time in front of the computer screens checking what the virtual friends are doing.”
The next effect that many scientists have warned about is the influence that social networks can have on human health. The main effect is on the human brain. “Baroness Greenfield, an Oxford University neuroscientist and director of the Royal Institution, believes repeated exposure could effectively 'rewire' the brain.”
Another important effect of social networks is on business. Online social networking is the newest weapon to get more customers. “William Baker, a professor of marketing at San Diego State University, found that firms that rely heavily on external social networks scored 24 percent higher on a measure of radical innovation than companies that don't. Online networks can help you hire the right people, market your product — or even find a manufacturer.”
In conclusion, as stated before, today social networks are the main tools of communications. Networks like Facebook, Twitter, MySpace and so on can have a great impact on human life and influence positively or negatively the social life, health and the world