社群網站是近來流行的社交媒體平台之一。成功的社群網站，能在短短幾年內吸引數以百萬計的用戶，此現象引起了對社群網站研究的關注。深入瞭解社群網站和用戶使用意願之間的關係，是運用社群網站做為市場行銷或教育學習的一個重要步驟。然而，由於目前在研究上廣泛使用的科技接受度模型本身缺乏社交構面，因此難以從科技配適的角度來解釋或探討網站使用者對社群網站使用意願的影響。本研究藉由整合任務科技配適模型和社會資本理論，探討並比較任務、社交與科技特性對於用戶使用社群網站意願的影響。實驗數據透過網路問卷，蒐集315 份臉書使用者的資料，以SmartPLS 2.0 套裝軟體，採用部份最小平方路徑和假設檢定進行資料分析。實驗結果顯示，本文所提出之社交科技配適模型較任務科技配適模型更能有效解釋網站使用者對社群網站使用意願的影響。因此本研究建議，對於社群網站使用意願影響的研究，應將社交構面納入研究模型中，以解決目前任務科技配適模型無法有效應用於具社交功能的資訊系統的問題。

Social networking sites (SNS) are one of the recent popular social media
platforms. Successful SNS can attract millions of users in a few years, which has drawn much attention in the study of SNS. Understanding the relationships between a user’s intention and the utilization of SNS is an essential step in engaging the SNS as a marketing or educational tool. However, current research models for technology acceptance can hardly explain the impact on the intention of using SNS from the perspective of technology fit due to the lack of social constructs. This study examines and compares the impact of task, social, and technology characteristics on users' intentions in using SNS by integrating the task-technology fit model and social capital theory. Data of 315 Facebook users were collected from the online questionnaire, and processed using the SmartPLS version 2.0 for path analysis and hypotheses tests. The results reveal that the social-technology fit has a dominant impact over the task-technology fit on users' intentions to employ SNS. For SNS research, it suggests a reconceptualization of the current task-technology fit model by adding social
constructs.

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