In a support group, members provide each other with various types of help, usually nonprofessional and nonmaterial, for a particular shared, usually burdensome, characteristic. The help may take the form of providing and evaluating relevant information, relating personal experiences, listening to and accepting others' experiences, providing sympathetic understanding and establishing social networks. A support group may also work to inform the public or engage in advocacy.

History

Formal support groups may appear to be a modern phenomenon, but they supplement traditional fraternal organizations such as Freemasonry in some respects, and may build on certain supportive functions (formerly) carried out in (extended) families.

Other types of groups formed to support causes, including causes outside of themselves, are more often called interest groups, advocacy groups, lobby groups, pressure groups or promotional groups. Trade unions and many environmental groups, for example, are interest groups. The term support group in this article refers to peer-to-peer support.

Maintaining contact

Support groups maintain interpersonal contact among their members in a variety of ways. Traditionally, groups have met in person in sizes that allowed conversational interaction. Support groups also maintain contact through printed newsletters, telephone chains, internet forums, and mailing lists. Some support groups are exclusively online (see below).

Membership in some support groups is formally controlled, with admission requirements and membership fees. Other groups are "open" and allow anyone to attend an advertised meeting, for example, or to participate in an online forum.