Social Nets, is something that nowadays everyone can use, but it's specially used by teenagers.
In the one hand, social nets, are good, because you can communicate better with your friends, without the need to spend money, as for example, a call by a mobile phone. Also, if you have much free time, you can spend it watching the pictures of your friends. Some social nets, have games, and is a very enjoying way to show your friends habilities playing, for example, the aquario.
On the other hand, you have to be careful, because, how everybody can use it, maybe, can take your pictures and do a bay use, fortunatelly, some of thats nets offer privacity. Other bad thing, is that sometimes it is addictive, and you use your time for looking it and don't do your homework or don't study for your exams.
My conclusion is that socials nets are fine if you know how to use them, because if you don't know all their disadvantages it can be dangerous.
