網路媒體已被多元化地應用於政治傳播，以往的相關文獻多聚焦於策略運用面向的分析，較缺乏對於民眾使用面向的探討。本研究即從使用層面，探討網路使用者對候選人社群網站和競選官網的依賴程度、使用動機以及可信度認知，並進一步比較分析兩者的差異性或共同點。
本研究在2010年底五都市長競選前後期間進行問卷調查，結果發現，網路使用者對候選人社群網站和競選官網的可信度認知沒有差異性，但相較於競選官網，使用者對候選人社群網站的依賴程度較高，且具有較強的「社交娛樂」動機。本研究亦根據分析結果，對於網路媒體在政治傳播中的應用進行多面向的討論並提出建議。

The Internet has been broadly applied in political communication with the presence of official campaign websites and campaign social network sites. As most studies have been conducted to analyze the application strategies, little has been done in the perspectives of users. This study aims to examine and compare users’ reliance, motivations and perceived credibility toward official campaign websites and campaign social network sites.
An online survey method was employed with data collected during the Five Cities Mayoral Election at the end of 2010. Analytic results showed no difference on user’s perceived credibility between official campaign websites and campaign social network sites. However, user’s reliance and the “social and entertaining” motive in using campaign social network sites are stronger than the campaign websites. Findings are further discussed to shed light on the application of Web campaign.