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Internet social networking sites have been the source of much speculation and controversy in the few years that they have been in existence. These sites (the most popular being MySpace and Facebook) allow their users to create online profiles, with which they can post pictures of themselves and interact with other users via text-based messaging. These sites are especially popular among teens and young adults, many of whom find their lives controlled by these sites. Utilizing the Uses and Gratificatioons approach in combination with the theory of the niche, the aim of this study is to understand the gratifications that are derived from the use of social networking sites, and how those gratifications compare with those obtained from the use of other communications methods (face-to-face communication and e-mail). Additionally, the study explores whether or not there has been a displacement effect for these older media with the introduction of social networking. A sample of 340 undergraduate and graduate students from a large western university were surveyed in-class regarding their use of three communications media (internet social networking, e-mail, and face-to-face communication). Students responded to 25 gratifications statements for each medium, rating how often they had used it for that particular purpose. They also responded to a question regarding whether their use of e-mail and face-to-face conversation has changed since they started using social networking sites. Answers from the gratification statements were subjected to principal component factor analysis using varimax rotation. After throwing out 10 statements due to their incompatibility across the three media, three gratification factors emerged: Gratification Opportunities, Social Utility, and Entertainment. Then using niche formulas, the media was compared across these three factors. Overall, face-to-face communication had the broadest niche, signalling that is best capable of fulfilling media gratifications. It also had the broadest niche in the Social Utility and Entertainment Factor, while e-mail had the broadest niche in the Gratifications Opportunities dimension. The results suggest that social networking may be popular because it acts as a convenient place to hang out — combining its relatively broad niches in Gratifications Opportunities and Entertainment gratifications, but shows little support for a displacement effect caused by its adoption.

This dissertation examined the critical role of human and social capital in the evolution of the NCAA Division I men's collegiate basketball product over time. Specifically, it sought to understand the characteristics of coaching networks that were consistently successful in perpetuating leader development over time, thereby theoretically replicating positive performance outcomes over long time spans. Interviews, content analyses and a literature search were performed to evaluate factors such as the processes of identification and selection of assistant coaches, the learning systems associated with their leader development, the strategies for their career advancement and growth, and the support structures of ongoing mentorship and professional networks that are important subsequent to their external promotion. Mixed methods were employed in the study. First, a quantitative analysis was performed in the early phases of the research project to identify the relevant coaching networks to be evaluated as well as to assess statistical relationships between five measures of coaching networks and success outcomes. This analysis was followed subsequently by qualitative ethnographic methods in relation to the selected coaching networks. The final output was the development of a conceptual model to be utilized for future research. Apart from some limited exploration by members of the popular press, there are no empirical studies known by this author that have examined characteristics of successful coaching networks and development systems.

Online Communities of Practices (CoPs) is emerging as a major form for knowledge sharing in this era of information revolution. Due to the advancement of technology and ease of internet access in every part of the world, people began to get more and more involved in online CoPs to share knowledge. The defining characteristic of a Community of Practice is the interaction between members in order to jointly determine and embrace goals, eventually resulting in shared practices. Crucial to the success of a Community of Practice is the engagement between community members. Without engagement, a Community of Practice can not share knowledge and achieve its negotiated goals. To that end, there is a need to examine, why do people engage in an online discussion, what role domain experts play to keep on-line discussion alive and how to develop a ''right intervention'' to maintain and stimulate participants for engagement in on-line community. This thesis studied eight Communities of Practices that are being deliberately formed to facilitate knowledge sharing in the online community and describes an exploratory study of knowledge sharing within Communities of Practices (CoPs) by investigating eight CoPs ¿Start up Nation, All nurses, Young Enterpener, Teneric, SCM Focus, Systems Dynamics, Mahjoob and Alnj3 CoPs. The CoPs under investigation shared the following characteristics: permanent life span, created by interested members (i.e. bottom-up rather than top-down management creation), have a high level of boundary crossing, have more than 700 members who come from disparate locations and organizations, have voluntary membership enrollment, high membership diversity, high topic¿s relevance to members, high degree of reliance on technology, and are moderated. Data were gathered on the eight CoPs through online observations and online questionnaire survey. Results show that in each of the case study the most common type of activity performed by members of each CoP was sharing knowledge, followed by socialsing. Regarding the types of knowledge shared, the most common one across all CoPs was practical and general knowledge. The types of practical knowledge, however, varied in each CoP. The study also discovered that storytelling extensively enhances knowledge transfer and participants¿ interpersonal communications in eight communities under investigation. What were also notable in this study were the stories discussed in a CoP remains in the archive, what are more likely to generate interest and curiosity on the topic among inactive members who ultimately facilitates knowledge transfer. In this study it is also evident that successful topics with successful conclusion (in terms that the original query was answered) will not necessary get high responses and vice versa. An analysis of selected topics in the eight case studies has shown that some successful topics have few replies and vice versa, where many topics ended with open conclusion or they were unsuccessful in terms that the original query was not answered satisfactory. Therefore, it is not necessary that successful topic will get high number of responses as there are some successful topics which have limited number of replies. Overall, it is found that, topic may play a major role in the success of online discussion. It is observed in the study that members normally use short messages rather long messages and usually discusses more than one topic within one thread. Practical implications for knowledge sharing in online communities of practice were discussed, along with some recommendations for future research.

The main objective of this research was to investigate how people use Facebook within the context of their romantic relationships from an attachment theory perspective. In the present study, a convenience sample (n = 179) completed an online survey with questions about Facebook use, attachment style, uncertainty-related behaviors, jealousy, relationship satisfaction and commitment. Results indicate that 1) there is a positive correlation between jealousy and Facebook use; 2) also, there is a positive correlation between jealousy and the time an individual spends viewing their partner's profile; 3) further, jealousy is positively related to uncertainty-reducing behaviors. Taken together, these results support the assertion that there is a downward spiral involving jealousy and Facebook. Results also showed that there are two types of uncertainty-related behaviors: antisocial behaviors and territorial behaviors. Anxious-ambivalent attachment styles were found to engage in antisocial behaviors the most, whereas secure individuals engaged in antisocial behaviors the least. The findings provide ample areas for future research on social networking sites and relationship variables.

The aim of the present study was to explore the ways adolescent females, age 14 through 17, utilized social networking websites such as MySpace and Facebook for communication, self-presentation and identity development purposes. Uses and gratifications theory served as a framework for identifying the participants' motivations for heavily using these websites, which allow users to post pictures, interests and updates for their friends to view and interact with online. Using a qualitative method, one preliminary focus group and ten in-depth interviews were conducted, totaling fifteen female participants between the ages of 14 and 17. Interview questions covered topics such as peer interactions through social networking sites, posting personal content to their profile pages, self-presentations through pictures and text, creating and maintaining friendships through these sites, and negative and positive feedback received through comments. Results indicated that the participants frequently used social networking websites for five main gratifications: Information Sharing, Convenient Communication, Self-Expression, Friendship Formation and Social Support.

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