And a study showed that just in the U.S.A., more than half (57%) said that their friends used these sites only for self-promotion, narcissism and attention-seeking (Jason, 2009). They end up "sending messages," "sharing thoughts," "poking friends," letting people know "what are they doing," and therefore spamming their profiles with unnecessary details of their lives (that, again, may not necessarily be true) just to hit the right note. On the other hand, one might still argue that social networking sites do really give opportunities to make real friends. One might say that exchanging messages, updating people what we are doing, and poking each other in the virtual world are no different than doing them in reality. But ask yourself: when you have a problem, could you replace a real tap on the back with a virtual smiley? Could a real rose be replaced by a virtual one on a Valentine's Day? Would you prefer to chat with your family on a Christmas...

But this is not enough reason for us to turn our backs from spending time with real friends! if, somehow, you realize you are one of those people who got hooked up with networking sites so much that they forgot how it is to be real friends with real people... Or just a little bit like them... then I suggest that you think. I'm not saying these people are not thinking. I am just suggesting that you think about if you want friends that are there for you only when you have access to the Web, or those that will be there for you forever.
REFERENCES

Boyd, D.M. And N.B. Ellison. Social Network Sites: Definition, History, and Scholarship. Journal of Computer-Mediated Communication, 2007.

Jason, S. Are social networks making students more narcissistic?. USA Today, 2009.