lakrisgubben

This plugin uses BuddyPress’s notification system to let users subscribe to all new posts on a site (or many sites if you run Multisite). When a new post is published all users subscribed to the site gets a notification and optionally an email (can be turned off in their BuddyPress email settings).
<h4>Requires</h4>
<ul>
<li>BuddyPress 2.3 or later</li>
<li>WordPress 4.3 or later</li>
</ul>

BP Site Subscriber

This plugin uses BuddyPress's notification system to let users subscribe to all new posts on a site (or many sites if you run Multisite).

John James Jacoby

Boone Gorges

Ron Rennick

Requires BuddyPress 1.5 or greater.
This plugin segregates BuddyPress social networks in a multi network WordPress install so that each WP network has a different social network. The user base is still shared across the WP install.
Multiple WP networks can be created with either:
<ul>
<li><a href="https://wordpress.org/extend/plugins/wp-multi-network/" rel="ugc">WP Multi Network</a></li>
<li><a href="http://wpebooks.com/networks/" rel="nofollow ugc">Networks+</a></li>
</ul>
Please see the installation instructions for proper installation.

BP Multi Network

Segregate your BP networks in a multi-network WP install.

BP Site Subscriber vs BP Multi Network