Makoto

既存の全記事+タイトルとタグ一覧を比較して記事内にタグにある文字列が含まれていた場合、記事にタグを自動的に追加します。

One Click Auto Tag

既存の全記事に自動でタグ付け

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.

One Click Auto Tag vs Simple Automatic Updates