On the site, under Proposals there's a new page title "Group Methods." It begins:
Possible Mutual Support Methods
Members of existing organizations -- such as activist organizations, human service agencies, book clubs, and other similar groups -- might use the following methods to support each other with their self-development. New groups, both informal and informal, might also form and use these methods.
That list will occasionally be updated. Suggested additions (or deletions!) can be posted on that page or as a comment here.