David Satime Wallin

BMRE Domain Monitor is built to keep an eye on the domains you add.
It checks the expiration date and warns you if a domain will expire in 30 days or less (both through email and in the admin interface)
It also has the feature (optional) to suggest domains that are similar to the ones you’ve added and that are still available.
DISCLAIMER: Do not ONLY trust this plugin for your domains. It works well but I can not be held responsible if something should go wrong and your domain does actually expire.
LICENSE:This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.
<pre><code>This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program. If not, see <http://www.gnu.org/licenses/>. </code></pre>

BMRE Domain Monitor

This plugin is meant to monitor your domainnames and warn you before they expire.

Jacob Schwartz

emfluence interactive marketing

When switching sites using the My Sites links in the admin menu, 
this plugin will automatically authenticate you into the site that you’re going to.
You do already have to be logged into a site in the network; 
this plugin just cuts down on having to log in again due to cookie isolation between domains.
Note: This plugin must be installed on all sites in a network in order to work properly.
Want to change how this plugin works, or add to it? <a href="https://github.com/emfluencekc/multisite-multidomain-single-sign-on" rel="nofollow ugc">Fork it on GitHub</a>!

Multisite Multidomain Single Sign On

Avoid having to separately sign in to separate-domain sites of the same multisite installation!

BMRE Domain Monitor vs Multisite Multidomain Single Sign On