ack of Anonymity
You are putting out information about your name, location, age, gender, and many other types of information that you may not want to let others know. Most people would say be careful, but no one can be certain at any given time. As long as people can know who you exactly are, then some can find ways to do you in.
Scams and Harassment
There is a potential for failure of security in both personal and business context. While many sites apply certain measures to keep any of these cases of harassment, cyber-stalking, online scams, and identity theft to an absolute minimum, you still may never know.
Time Consuming
If this is not your kind of thing, that it would just be a waste of time for you. The key to social networking is that it is supposed to be fun, whether you are just doing it for kicks or clicking around for business purposes. That should be reasonable enough for anyone, but there are those people who don't see the point. For them, it can be a disadvantage.
Now there is something to really think about. Nothing is without a blemish, but those of this type of networking shouldn't really be that much of a concern regarding your safety. As long as you go along without making big mistakes, then it is all good. You can take advantage of the Internet phenomenon that continues up to this day.
Once you understand the advantages and disadvantages of social networking, then you can cruise through without fail. http://www.everyday-wisdom.com/social-networking.html Nothing has changed the Web more than the rise of social networking sites. Before social networking, the World Wide Web was full of interesting information, but there was little opportunity to contribute or participate.

Today, social networking sites are fulfilling the potential of the Web: connecting people across the globe. But why do they matter so