本研究旨在探討使用者如何在Facebook中自我揭露並控管揭露的個人資訊，進而瞭解相較於現實環境，使用者在Facebook中互動時的個人隱私認知和維護的情況。資料蒐集方式以焦點團體訪談為主，再結合參與觀察的資料進行比較分析，以釐清使用者在Facebook互動時的自我揭露和個人隱私劃界情形。

研究結果顯示：

一、Facebook串聯離線與線上生活，過半數的受訪者將Facebook視為另一個展現自我的舞台，並將離線生活的隱私態度和認知延伸至Facebook。Facebook的隱私設定看似可讓使用者掌控個人資訊，但繁雜且不斷變更的隱私政策導致使用者只能改變使用習慣，在揭露個人資訊前依照不同目的、對象不斷調整個人隱私的界線。

二、當真實生活延伸至Facebook後，半數以上的受訪者為求持續在Facebook與人互動，經常對個人隱私產生妥協與退讓，不過部分受訪者只揭露對個人隱私影響層面和利害關係最小的個人資訊，這顯示使用者在個人隱私的維護上不因線上與離線而有所區隔，而是根據使用需求和動機衍生出不同的隱私維護機制。

The purpose of research is to explore how users disclose and control their personal information on Facebook and further investigates users’ personal privacy cognition and maintenance to compare with their real life. Data collection methods mainly include focus group interviews and participant observation.

Research results are two-fold:

1.By regarding Facebook as a showing stage, users extend their privacy attitudes and cognitions to Facebook and play a similar part of themselves in reality. Owing to the imperfect of Facebook privacy settings, users change their using habits and adjust the boundaries of personal privacy based on different purposes and people.
2.In order to interact with realistic friends on Facebook, users would compromise between their privacy cognition and using situation. Users’ privacy cognition and maintenance are constructed of their usage needs and motivations but not based on online or offline.

目錄
第一章 緒論......................................1
第一節 研究背景與動機..............................1
第二節 研究問題...................................5

第二章 文獻探討...................................7
第一節 隱私的起源與定義............................8
第二節 人際互動：線上與離線的串連....................15
第三節 自我揭露...................................28
第四節 小結......................................38

第三章 研究方法..................................41
第一節 研究設計..................................41
第二節 資料蒐集方法	..............................42

第四章 Facebook................................47
第一節 Facebook的媒介特性........................47
第二節 Facebook背景與界面介紹.....................49
第三節 Facebook隱私爭議..........................78

第五章 資料呈現與綜合分析討論	......................83
第一節 使用者與使用者的隱私劃界.....................84
第二節 使用者與系統的隱私劃界	......................105
第三節 綜合分析與討論.............................117

第六章 結論.....................................123
第一節 研究結果..................................123
第二節 研究限制與建議..............................128

參考文獻.........................................131
中文部分.........................................131
英文部分.........................................133

附錄.............................................140
附錄一【訪談前問卷】................................140
附錄二 【受訪者基本資料與場次安排清單】................142
附錄三 【焦點團體受訪者訪談大綱】.....................144

圖1 隱私四層面........................................9
圖 2 使用者對使用者的互動方式...........................23
圖 3 使用者對文本的互動方式.............................25
圖 4 使用者對系統的互動方式.............................27
圖 5 社會滲透模式.....................................34
圖 6 研究設計圖.......................................42
圖 7 Facebook台灣用戶男女比例..........................51
圖 8 Facebook台灣用戶年齡比例..........................52
圖 9 Facebook註冊頁面................................55
圖 10 Facebook好友搜尋...............................56
圖 11 Facebook個人資料編輯頁面分享區塊設定...............57
圖 12 Facebook個人資料編輯頁面.........................58
圖 13 Facebook個人資料編輯頁面細項分享對象選擇............59
圖 14 Facebook個人資料頁面朋友編輯與分享對象設定...........59
圖 15 Facebook個人資料頁面相片設定.......................60
圖 16 Facebook個人資料頁面地標設定.......................61
圖 17 Facebook個人資料頁面說讚的內容設定..................62
圖 18 Facebook首頁....................................64
圖 19 Facebook最新動態內容呈現..........................65
圖 20 Facebook個人頁面.................................68
圖 21 Facebook分享對象快速套用隱私設定.....................71
圖 22 Facebook自訂對象隱私設定............................72
圖 23 Facebook隱私設定介面與捷徑..........................73

表 1基本隱私設定與工具功能.................................74
表 2動態時報與標籤設定功能.................................76
表 3管理封鎖功能.........................................77
表 4 Facebook個人隱私爭議事件列表.........................78

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