References
The social side of gaming: a study of interaction patterns in a massively multiplayer online game
Nicolas Ducheneaut   	  Palo Alto Research Center, Palo Alto, CA
Robert J. Moore 	 Palo Alto Research Center, Palo Alto, CA
Computer Supported Cooperative Work  archive
Proceedings of the 2004 ACM conference on Computer supported cooperative work table of contents
Chicago, Illinois, USA
SESSION: Gaming table of contents
Pages: 360 - 369  
Year of Publication: 2004
ISBN:1-58113-810-5 
Finding others online: reputation systems for social online spaces
Carlos Jensen   	  Georgia Institute of Technology, Atlanta, GA
John Davis 	 Microsoft Research, Redmond, WA
Shelly Farnham 	 Microsoft Research, Redmond, WA
Conference on Human Factors in Computing Systems  archive
Proceedings of the SIGCHI conference on Human factors in computing systems: Changing our world, changing ourselves table of contents
Minneapolis, Minnesota, USA
SESSION: Group Spaces table of contents
Pages: 447 - 454  
Year of Publication: 2002
ISBN:1-58113-453-3 
Synthetic Worlds: The Business and Culture of Online Games
Year of Publication: 2005
ISBN:0226096262
Author 	
Edward Castronova
Mobasher, B., Cooley R, Srivastava J, (August 2000) Automatic personalization based on web usage mining, Communications of the ACM Volume 43 ,  Issue 8   Pages: 142 - 151   
Buono, P., Costabile, F M., Guida, S., Piccinno, A., Integrating user data and collaborative filtering in a web recommendation system, Lecture Notes In Computer Science; Vol. 2266 
Revised Papers from the nternational Workshops OHS-7, SC-3, and AH-3 on Hypermedia: Openness, Structural Awareness, and Adaptivity Pages: 315 - 321   
JB Schafer, J Konstan, J Riedi, Recommender systems in e-commerce. Proceedings of the 1st ACM conference on Electronic commerce, 1999. 158-166.
SHARPLES M., Computer-based tutoring of visual concepts : from novice to expert, Journal of computer assisted learning, 1991, vol. 7, no2, pp. 123-132 (1/2 p.)