Social networking is the best way to communicate with people and share your profile, to make friends, for business purpose etc..
Social Networks is a medium that can connect people with each other through networking sites like facebook, twitter, etc.
A social network is Kind of social structure made up of individuals (or organizations) called "nodes", which are tied (connected) by one or more specific types of interdependency, such as friendship, kinship, common interest, financial exchange, dislike,relationships of beliefs, knowledge or prestige.
It's a lot like an International College. Being involved in a Social Network,such as facebook, Twitter, Tumblr, Plurk, and MySpace, enables you to connect withdifferent kinds of people in different countries within a few clicks on the mouse button. If you really wanna know the essence of Social networking, it is merely defined in these few words: " Uniting people outside racist walls, prejudice and biases in one virtual world"
Social networks is the online phenomena in which people interact with each other and share pictures, thoughts, video ad more...Face Book is the mostly used social media site worldwide.