harpercl

This plugin will add a widget that displays thumbnails of the most recently posted images from all the blogs in a network. It’s highly optimized to be scalable for large networks, so it should need only about 100 database queries even for a network of thousands of sites. And to keep any performance drain as minimal as possible, the plugin utilizes caching with an adjustable update interval.
<ul>
<li>Note that images are taken only from blogs and posts which don’t have privacy options enabled (compatible with <a href="https://wordpress.org/extend/plugins/more-privacy-options/" rel="ugc">More Privacy Options</a>) and the image must be attached to a post. So essentially, only public images are shown.</li>
</ul>
The widget formatting is completely customizable via a template and/or CSS (if available). The template uses patterns that will plug in values for the following:
<ul>
<li>Image Title</li>
<li>Image Caption</li>
<li>Image Description</li>
<li>Image Thumbnail URL</li>
<li>Full Image URL</li>
<li>Image Publish Date</li>
<li>Parent Post Title</li>
<li>Parent Post URL</li>
<li>Blog URL</li>
</ul>

Sitewide Recent Images

A widget for multisite blogs to feature recent images from all the blogs on their network

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.

Sitewide Recent Images vs BP Multi Network