ABSTRACT
Social networking sites are defined as “web sites that allow members to construct a public or semipublic profile and formally articulate their relationship to other users in a way that is visible to anyone who can access their file” (Boyd and Ellison, 2007). Social networking sites allow anyone to have a personal web presence. Characteristics that have made social networking sites so popular include the following:
1. They allow for self-expression. 2. They require little or no knowledge of web design. 3. They allow for social interaction and networking. 4. They are free or inexpensive to use.
