Adds social sharing buttons on your BuddyPress site to let members and visitors share content on popular networks like Twitter and Facebook etc.
For WordPress there are many sharing plugins like Digg Digg, Shareaholic, ShareThis etc but for BuddyPress there are only a few. One nice working BuddyPress sharing buttons plugin is BuddyShare. It is a free plugin that adds social sharing buttons on your BuddyPress site’s Activities, Forum Topics, Posts And Groups etc.
Simply install and activate BuddyShare then under the BuddyPress admin menu click Share It link and check the options you like as shown in the given screenshot.