BuddyPress Group Email Subscription does what it says. It gives your group members the option to be sent emails based on group activity. It allows group admin to set a default subscription level, which is applied to all new members and it also allows group members to set their own choice. This plugin provides a full range of options both to members and managers alike.
Invite Anyone is a BuddyPress plugin that adds a widget allowing site members to invite friends to join the site via email. It also changes the behaviour of group invitations meaning group members can invite non-friends to join the group.
WP ULike is a WordPress plugin that also supports BuddyPress, bbPress and a number of other plugins, it aims to be a comprehensive “Like” system for your site and enables site users to like a wide range of content types, including posts, forum topics and replies, comments and activity updates.
BuddyPress Extend Fields is a plugin that adds additional information fields to a group.
BuddyPress Extended User Groups Widget is a plugin that will display a list of groups that the user is a member of or a list of groups that they manage. There is also a version of this plugin that will display the same for the member whose profile is being viewed.
BP Create Group Type is a BuddyPress plugin that uses the new Group Types feature in order to create a range of admin defined group types for selection by the group creator. Once selected the group type is displayed in the group cover area of the groups pages.
BuddyPress Groups Extras is a group plugin that allows group admin to add two additions tabs to the group. One page, called “Extras” is composed of fields that can be set up and edited by the group admin. The other page called “Pages” (or any name) is composed of one or more fully editable pages. The concept is to give group owners the ability to add additional information to the group, such as adding a full page description with images and videos.
BuddyPress Docs adds collaborative documents to BuddyPress. This means that a person can create a document that can be edited by multiple people.
The BuddyPress @Mentions is it’s system for sending site members a public message, similar to writing on a users wall in Facebook since the mention will turn up in that users activity stream. @Mentions is normally a one to one thing, if you want to have more than one person in your mention then you must include @member1, @member2 etc. In your activity update.
BP Auto Group Join is a plugin which allows site admin to configure groups which all existing site members and/or all new registrations will be automatically joined to. The plugin creates in the Dashboard>>Groups>>GroupName view additional options: to auto-join all new registrants, and to auto-join all existing members.