在社交媒體(social media)網站如雨後春筍般出現的時代，作者以觀察「大型社交媒體的高滲透率，以及媒體由服務、迎合大多數人的喜好的型態，演進為提供更加貼近各專業領域的服務型態的現象」出發，選定籃球為本研究之專業領域，藉由開發專注於籃球領域的社交媒體網站---Basketball Addiction來了解使用者是否能如作者觀察媒體的演進般，社交媒體網站也會有更加貼近各專業領域的服務型態出現，而使用者在使用這樣的網站時能得到滿足，持續使用，甚至推薦給朋友。 在經過本研究問卷調查後，利用統計分析軟體PLS(Partial Least Squares)進行模型的分析，Bootstrapping進行假說的顯著性檢定。結果顯示，專注於特定領域的社交媒體網站在未來是有存在的可能的，Fulfillment構面的調查結果也顯示Basketball Addiction的確能滿足使用者「社交」及「專業」的期待。 / In the era of social media sites have sprung up, the author observed, "large-scale high penetration of social media and the phenomenon of the media have made services to cater to most people's favorite patterns evolved to provide more services closer to the various professional fields patterns. Select basketball as this research professional fields. Through the development of social media sites which focus on basketball professional fields --- Basketball Addiction to understand whether the social media sites can follow the evolution of media, such as like, there will be more social media sites provide professional services. In addition, author also wonder that whether users in the use of such sites can be satisfied, continuous use, and even recommend it to friends. After the survey, author uses PLS (Partial Least Squares) to analyze and verify the model’s reliability and validity, Bootstrapping to make significant analysis. The results show, social media sites which focus on specific fields can exist is possible. Also, the results of the latent variable --- Fulfillment show that Basketball Addiction indeed allows users to have to meet the expectations, "social" and "professional" in.