The trend of social networking has reached its highest peak and it is gaining its popularity among the people day by day. Various kinds of social network such as Facebook, Twitter and LinkedIn are growing rapidly among the people within the past few years. Almost every computer graduated person is maintaining at least one social media account and they are spending a large amount of time on the social media each day.

These social networks can be described as the web applications and people can use them for several reasons such as to network with the new contacts or to connect with the former friends as well as maintaining current relationship or building and promote a business or projects etc.

There are some services such as Facebook, Twitter which are having the broad range of users while the others are catering to particular interest such as LinkedIn is maintaining its positioning as a professional networking site as well as profiles which includes resume information etc.

Types of social networks: many types of social networks are available in which most are combining elements of more than one of these types of networks as well as the focus of the networks may change over time. There are many security and privacy recommendations which are applicable to the other types of networks.

Personal Networks: Through these kinds of networks, users are allow to create detailed online profiles as well as connect with the other users with an emphasis on the social relationships such as friendships on Facebook which are the platform to communicate with contacts.

These networks generally involve user sharing information with approved users such as gender, age, interests, educational backgrounds etc. these platforms are giving us the opportunity to share the selected information with individuals.

Status Update Network: These networks have been designed in order to allow the users for posting short status updates for the purpose of communicating with the other users quickly such as Twitter has services on providing instantaneous as well as short updates. They have been designed in order to broadcast the information quickly and publically.

Location Networking: With the advancements of the GPS enabled cellular phones, these location networks are improving in popularity. These networks have been designed in order to broadcast the real time location of other persons as public information or as an update which can be viewed by the authorized contacts.