Virtual library , there is no physical collection, there is no room, wall nothing but what ever we want to check we can check through network just like online library
Virtual Library means Library is maintained on Computer which is connected to Network, When you store eBook, pdf, doc, xls files in your computer serverr, then the user will view the files in his client computer, in this way library is maintained virtually, online storage of information, data, files, etc can be viewed by users is called Virtual Library. Some softwares like GreenStone and DSpace are freely available on the Internet, download them, read instructions for Installation and maintenance. Try for it, All the best
Definition and meaning of virtual library:
Virtual library - virtual libraries provide online access to specialized collections of information resources. Normally they include bibliographic citations with links to full text documents and other online resources such as video or photos. Virtual Libraries can also serve as gateways to information and resources on science, management, and policy for researchers, scientists, resource managers, policymakers, stakeholders, and the general public.
For deatiled study on virtual libraries you can read some of the good books and journal articles written on virtual libraries..some of them available through google search engine..
Visit the following ONLINE VIRTUAL LIBRARIES to get a clear idea :
1) http://vlib.org/The virtual library online
2)http://www.ipl.org/ The internet Public library
3)http://www.academicinfo.net/digital.html
4)http://vlib.org/Biosciences The virtual library Biosciences
5)http://www.efi.int/portal/virtual_library/