Social networking is a social structure consisting of individual elements or organizations. The social network shows the way these elements or organizations are related based on
similarities between one another and day-to-day interaction. The term was introduced by Professor J.A. Barnes in 1954.
Social networking is an established social structure of nodes (which are generally individuals or organizations) tied by one or more specific type of relationships such as values, visions, ideas, friends, descendants, etc. (Wikipedia)
Social networking is actually a newer form of Internet communities where users connect to each other quickly. This is different from the social networks establish five years ago which are probably better known as discussion forums, chat, messenger or a mailing list where communication patterns in these forums were limited. Social networking works across gender lines as well. Women’s social networks are growing and are helping to reduce discrimination against women in some countries.
Traditionally, the mailing lists have been the long used forerunner of the Internet community but social networking
has taken over. Social Networking via the internet has become rapidly popular due to the ability to quickly connect single domain communities to other Internet communities. For example, if we use social network and micro-blogging tools
like Plurk to update our status, then our status can be distributed to facebook, twitter, and other social sites at once. Tools like Plurk consolidates several domain communities so their function is more practical.