The present study investigates why people participate in Second Life social support groups. Twenty-three participants in Alcoholics Anonymous and Cancer Caregiver groups that meet in Second Life were interviewed and asked how satisfied they are with those meetings, what influences their satisfaction, what they find most helpful, what they like the least, the nature of their relationships in the group, and what surprised them the most. Their responses identify the text-based anonymity, nearly synchronous communication, visual representation of avatars, and use of time and virtual space as influences that stimulate hyperpersonal relationship development in their Second Life social support groups.