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

Daniel Westermann-Clark

By default, WordPress network usernames cannot contain anything but lowercase letters and numbers. This plugin adds network options to let you include hyphens, underscores, or uppercase letters, if desired.
Furthermore, this plugin gives you the option to allow email addresses as usernames, or to allow all-numeric usernames (e.g. “1234”).
Finally, this plugin lets you override the minimum length for usernames (which defaults to four characters).
To follow updates to this plugin, visit:
https://danieltwc.com/
For help with this version, visit:
https://danieltwc.com/2011/network-username-restrictions-override-1-0/

Network Username Restrictions Override

Does what it says!

Override restrictions on WordPress network usernames.

Sitewide Recent Images vs Network Username Restrictions Override