This dissertation is concerned with investigating topics surrounding the phenomenon of social media usage. Essay One draws from the technology acceptance literature by utilizing concepts from the Technology Acceptance Model (TAM), the Unified Theory of Acceptance and Use of Technology (UTAUT), and the model of hedonic technology acceptance. The purpose of this essay is to propose new technological and personal characteristics that influence the usage of hedonic social media. Essay Two utilizes Self-Discrepancy Theory. Self-Discrepancy Theory states that when a person "should" be doing one thing, but is actually doing something else, there is a cognitive discrepancy that leads to negative effects. This framework is used to show how usage of social media in a work environment can have detrimental internal and external effects to the user. Essay Three examines IT workers from around the world through the lenses of Person-Environment Fit and Job Characteristic Theory. This study examines how the combination of social media usage and job characteristics affects IT employees in the workplace. The results of these three essays have implications for both research and practice. Future research topics and areas of interest are provided for continuing this stream. Practical advice is also given for managers and educators alike concerning social media. [The dissertation citations contained here are published with the permission of ProQuest LLC. Further reproduction is prohibited without permission. Copies of dissertations may be obtained by Telephone (800) 1-800-521-0600. Web page: http://www.proquest.com/en-US/products/dissertations/individuals.shtml.]