Mutual support groups whose members are individuals who have a substance use disorder or any of a number of behavioral addictions which are akin to substance-related disorders in clinical expression, brain origin, comorbidity, physiology and treatment. The groups meet in-person, by telephone or via the Internet; provide emotional support, information and resources to help those who participate modify their behavior; and may include faith-based and secular 12-step groups as well as non-12 step groups.

Mutual support groups whose members are people who have experienced a loss, such as the death of a loved one, divorce or separation. The groups meet in-person, by telephone or via the Internet; are open to anyone who has had a loss rather than structured for people with particular types of losses; and focus on helping participants accept their loss, express their grief, move through the bereavement process and put their lives back together.

Mutual support groups whose members are individuals or couples who want to learn to build healthy, lasting relationships and/or work through problems such as poor communication or infidelity in a current relationship or marriage. Included are groups for people who have never been married, are divorced, widowed, in a relationship or presently married, and want to learn to develop intimacy, communicate effectively, work as a team to solve problems, manage conflicts without damaging closeness and preserve and enhance love, commitment and friendship within the context of a marriage or relationship. The groups meet in-person, by telephone or via the Internet; and provide an opportunity for participants to share their experience, strengths and hopes, understand their relationships and work through related emotions.

Individuals who are generally between the ages of 18 and 25 depending on the ages that specific programs use for qualification.

Individuals who have experienced a loss, such as the death of a loved one or pet, divorce or separation, estrangement from a family member or any other kind of significant loss whose own patterns of personal, social and familial coping have been significantly affected as a result.

Adolescents who are mothers or fathers.