There is currently little research addressing this question as most research dealing with social network sites has focused on things such as privacy issues, network connectivity, and social capital benefits. One article by DiMicco et. al. (2007) titled Motivations for Social Networking at Work “ that professionals use internal social networking to build stronger bonds with their weak ties and to reach out to employees they do not know. Their motivations in doing this include connecting on a personal level with coworkers, advancing their career with the company, and campaigning for their projects.” Basically social network sites are being used to advance networks in which there are limitations under what used to be traditional paths. Another article by Boyd & Ellison (2007) presents a slightly different view as it states “Although exceptions exist, the available research suggests that most Social Network Sites primarily support pre-existing social relations”. Further reading of this article indicates that the pre-existing social relationship can be any common interest – such as working for the federal government or attending the same school even though no “physical relationship” existed.