-Social networking sites are those designed primarily to connect users with one another for the purposes of establishing and maintaining relationships.

-Sites typically requires users to create and customize a personal page using a selection of software tools made available.

-Early sites included single photos and lists of hobbies. Modern sites have evolved to include multimedia such as music, videos, and interactive content.

-Importantly, users search through the other members signed up with the website and select who they are "friends" with. When two users agree that they are "friends" the relationship is established.

-The collection of many attractive friends from diverse range of prestigious or fun schools is sometimes thought to confer high status upon the account holder.

-Social networking sites are simultaneously entertainment and legitimate communication and contact management tools.

-Corporations have spend vast amounts of money advertising on social networking sites because of their ability to attract young, impressionable, wealthy Millenials for long durations, several times a day