Digital Online and Virtual Libraries are the storehouse of knowledge as they maintain the journals, published articles, book and other knowledge resources available. However, with the advent of digital technology and Internet connectivity, the library scenario is changing fast. Digital technology, Internet connectivity and physical content can be dovetailed resulting in Digital Library. Data available in physical form has been preserved digitally in Digital Library. Digital Libraries have the ability to enhance access to information and knowledge. They also Bridge barriers of time and space. In the past initiatives have been taken by different Ministries / Departments / organizations for digitizing and preserving data available in physical form. However, this activity has been restricted mostly in the area of the work / interest of the organization. Digital online Organization (doi) basically is a data base system and essentially which deals with digital and virtual Library.
Digital Library is a storehouse of Indexed Articles, Indexed Journals, Indexed Books, Indexed Libraries, and Other Indexing Objectsand it is nothing but a cross reference system in which Digital online Organization provide a doi no. for a particular object or article. The Digital Library is helping to develop an international strategy to collect, archive and preserve the burgeoning amounts of digital contents like journals, articles, books, conference proceedings for current and future generations.