Deep gratitude to interviewees of the project for their support. Without them, the project cannot be realized. Thanks to the Digital and Multimedia Services Section of Hong Kong Baptist University Library for their help, support and awarding me the Digital Scholarship Grant. Thanks to Mr. Jacky Wong, Mr. Kam Ho Chan and Miss Macy Chu for transcription of the interviews. Special thanks to Miss Roniko Leung for her diligence and enormous help in data collection and project administration. The project is also funded by the General Research Fund Scheme of the Research Grant Council (Project number: 12638516).