CHAPTER-1
INTRODUCTION
1.1 INTRODUCTION
Social networking websites are a must for the Internet community to stay in touch with each other Social networking web sites help people keep in touch with old friends, make new friends, distribute new data or product, and many more aspects of our everyday lives.
We define social network sites as web-based services that allow individuals to:
(1) Construct a public or semi-public profile within a bounded system.
(2) Articulate a list of other users with whom they share a connection, and
(3) View and traverse their list of connections and those made by others within the system. The nature and nomenclature of these connections may vary from site to site.
HOW DOES ‘SNS’ WORK
While SNSs have implemented a wide variety of technical features, their backbone consists of visible profiles that display an articulated list of Friends who are also users of the system. Profiles are unique pages where one can type oneself into being. After joining an SNS, an individual is asked to fill out forms containing a series of questions. The profile is generated using the answers to these questions, which typically include descriptors such as age, location, interests, and an "about me" section. Most sites also encourage users to upload a profile photo. Some sites allow users to enhance their profiles by adding multimedia content or modifying their profile's look and feel. Others, such as Facebook, allow users to add modules (Applications) that enhance their profile.
The public display of connections is a crucial component of SNSs. The Friends list contains links to each Friend's profile, enabling viewers to traverse the network graph by clicking through the Friends lists. On most sites, the list of Friends is visible to anyone who is permitted to view the profile, although there are exceptions.
EXAMPLES OF SOCIAL NETWORKING SITES
Facebook was developed by