Word of mouth (WOM) communication is a major part of online consumer interactions, particularly within the environment of online communities. Nevertheless, existing (offline) theory may be inappropriate to describe online WOM and its influence on evaluation and purchase. The authors report the results of a two-stage study aimed at investigating online WOM: a set of in-depth qualitative interviews followed by a social network analysis of a single online community. Combined, the results provide strong evidence that individuals behave as if Web sites themselves are primary “actors” in online social networks and that online communities can act as a social proxy for individual identification. The authors offer a conceptualization of online social networks which takes the Web site into account as an actor, an initial exploration of the concept of a consumer–Web site relationship, and a conceptual model of the online interaction and information evaluation process.

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Outlines the essential elements of a role theoretical perspective and explores its potential importance to service performance in people‐based service encounters. Drawing on Biddle, and on Solomon et al.’s interpretations, how role theory enhances our marketing exchange understanding by focusing on the interactive features within successful service encounters is demonstrated. Outlines how role management offers a framework to evaluate the degree of interactivity sought in relationship approaches. Role theory, it is argued, can enable organizations to identify role development needs for service personnel within interactive service formats and permits organizations to monitor processual elements of service performance. A managerial framework, which identifies specific role management tasks in client encounters, is developed. This, it is proposed, may operate in two domains, internally within the service process and externally within the service encounter with clients. The contribution of role to the service life cycle, as a factor in service performance, and as a means to encourage customer retention is discussed: its application in different services contexts is briefly outlined.