Social networks: pros and cons

Social networking sites are the new starting point for new relationships on the Internet. But, why they're so interesting? In my opinion, they're very useful because you can meet new people, and thus, make new friends from around the globe. Even you can find your true love. The only bad point is that some people lie, and you can believe them. But as my own experience, I have met a lot of great people from Spain, and you can have a lot of fun with them.