BP Favorite Groups allows users to save their favorite BuddyPress groups to there profile. Much like liking a Facebook Page, users can favorite a group and view the group activities on their wall.
The plugin also come packed with a simple short code for displaying a user』s favorite groups [sp_favorite_groups user_id=1] . The shortcode will display a list of the user』s favorite groups and link to the group.
You can modify the language file and change the button 「Favorite Group」 to you liking. Some example are; 「Like Group」, 「Bookmark Group」 etc
