1Slean, B. Ready for Reference: Academic Libraries Offer Live Web - Based ReferenceEvaluating System Use. http ://www. lis. uiuc. edu/- b - slean/r4r. final.htm,2005 -03 -01.
2Kaske,N. ,Amold,J. An Unobtrusive of Online Real Time Library Reference Services. Paper presented at the Library Research Bound Table,American Library Association, Annual Conference, Atlanta, CA. http ://www. lib. umd. edu/groups/digref/LRRT.html,2005 - 03 - 01.
3Stormont, S. Interactive Reference Project - Assessment After Two Years. http://www.vrd. org/conferenees/VRD2000/proceedings/stormont.shtml,2005 - 03 - 01.
4Sears, J. Chat reference service: An analysis of one semester' s data. http://www.library.ucsb. edu/istl/10 - fall/article2.html,2005 -03 -01.
5Fagan, J. C. , Calloway, M. Creating an Instant Messaging Reference System. http ://www. lita. org/ital/2004_fagan.html,2005 - 03 - 01.
6Hom,J. The Future is Now: Reference Service for the Electronic Era. http://www.ala.org/ala/acrl/acrlevents/horn.pdf,2005 -03 -01.
7Coppola,E. ,Cooper,T. , Keays,T. etc. Syracuse University Library Web Chat Action Team Final Report and Recommendations. http://libwww.syr.edu/information/strategicplan/progressreports/webchat/finalreport.pdf,2005 - 03 - 01.
8Marstdler, M. , Neuhaus, P. The Chat Reference Experience at Carnegie Mellon University http ://www. contrib.andrew.cmu.edu/- matthewm/ALA_2001_chat. html,2005 -03 -01.
9Boyer, J. Virtual Reference at the NCSU Libraries: The First One Hundred Days. http ://www. ala. org/ala/lita/litapublications/ital/2OO3boyer.htm,2005 -03 -01.