This paper describes an experience with using the internet for collaborative peer consultation on a problem that arose with an ex-client. It illustrates the utility of professional electronic mail lists in providing timely information about how to proceed with relatively rarely encountered clinical situations. A professional therapist posted a message describing her experience of being stalked by a borderline ex-client. She noted specific threatening behaviors of the ex-client, her attempts to rectify the situation, and asked for advice. Within five days she received 42 replies. The majority of the respondents were clinicians who had faced (n=21) or were currently facing (n=5) a similar problem. The original message and 16 responses are transcribed here. The responses generally expressed great support for the therapist. Advice was received on legal issues such as the possibility of a restraining order, therapeutic issues, and personal care. The application of "virtual community technology" was found to be of great practical help. (JBJ)