Aston Business School, Aston Triangle, Birmingham, B4 7ET, U.K.;Group Performance Systems. Inc., 4776 Village North Court, Atlanta GA;33 Burilda Street, Hendra, Brisbane, Queensland 4011, Australia;Sociology Department, Graduate School of Arts & Sciences, Boston College, 140 Commonwealth Avenue, Chestnut Hill, MA;BP 872, RR #1, Chelsea, Quebec, Canada, J0X 1N0;Essential Systems Group, 917 S, Normandie Ave., Los Angeles, CA;Systems Technology and Services, Carnegie Group, Inc., 5 PPG Place, Pittsburgh, PA;Interactive Intelligence, Inc., 19363 Willamette Drive #500, West Linn, OR