TY - BOOK AU - K Ann Renninger,Wesley Shumar AU - Shumar,Wesley TI - BUILDING VIRTUAL COMMUNITIES SN - 0521785588 U1 - 004.67 PY - 2002/// CY - PB - Cambridge Univ. Press, Cambridge KW - Electronic Villiages (Computer Networks) KW - Internet -- Social Aspects KW - Computer Networks -- Social Aspects ER -