In electronic support groups, people use Internet-based electronic text communication to discuss personal problems or disorders with others who share common circumstances. Although their discussions exist only in the electronic medium, these groups can be viewed usefully as discourse communities. The authors draw on what is known about two other popular sources of help—face-to-face self-help groups and self-help books—to frame the rhetorical challenges faced by members of electronic support groups. The authors then compare the discourse of electronic support groups with that of electronic hobby groups to demonstrate that the two sets differ in terms of the rhetorical behavior of their participants. The authors analyze messages to determine how members establish legitimacy and authority in their texts and how message exchange gives rise to group identity and a sense of community. Our observations indicate that although some discourse characteristics and some rhetorical features are common to all the electronic groups we studied, others are unique to the special requirements of electronic support groups.

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