Social Networks are popular a lot in 21st centure. People work on the internet, serf the Network in their free time, use it to keep in touch with their friends and relatives.

Some people claim that SN are one of the most important innovation. Nowadays most of people cannot imagine their contemprary life without it. While there are those who tend to belive that S.N. have a terrible influence on teenagers who are the most common users of it.

In my opinion Networks are absolutely changeble creation for our society. After the time when netwoks appeared different types of information become mach more available then it was before. Big amount of new opportunities become posible for ordinary people. Now, everyone could find what ever they