網路科技不斷推陳出新，甚至於漸漸取代了圖書館的部分功能，這對現代圖書館有什麼啟示？處於數位時代下的傳統圖書館又該如何演進與變化，以迎合讀者的真正需求？為了研究分析數位圖書館的服務趨勢，本文將針對目前各種網路服務加以比較，藉此找出圖書館應該透過網路提供什麼樣的服務。

The internet technology constantly launches new solutions, even replaces some functions of the library by degrees. Is this an impact to the modern library? How do the traditional libraries develop and change at the digital age? What are the real requirements of the readers? For researching and analyzing the next steps of the libraries, this issue will find out what services the library should provide through internet by comparing the current internet services.