Rectus Inc.

A plugin for convenient tag management. 
When posting, any tags that exist on the page will be automatically registered. 
You can also register or delete tags for all pages at once.

Rectus Auto Tagging

If a tag exists in a page at the time of submission, it is automatically registered. Tags can also be registered or deleted for all pages at once.

Jon Tejnung

This plugin will give you three alternatives for managing your WordPress updates:
<ul>
<li>Update automatically – This updates WordPress/themes/plugins automatically and sends an email to the site admin when an update has been performed.</li>
<li>Update automatically (no email) – Same as the first alternative, but without the email.</li>
<li>Inform about updates once a week – This will send an email to the admin once a week if there are anything that can be updated.</li>
</ul>
Notice that only plugins/themes that resides in the WordPress 
repository will be updated/informed about.
The plugin has not been tested and is not primarily made for multi site-installations.

Simple Automatic Updates

Activate automatic updates or weekly notifications for the site.

Rectus Auto Tagging vs Simple Automatic Updates