Marcin Pietrzak

Add a full tag list to your site.
<h4>Translators</h4>
<ul>
<li>Belorussian (be_BY) – <a href="http://pc.de/" rel="nofollow ugc">Marcis G.</a></li>
<li>Polish (pl_PL) – <a href="http://iworks.pl/" rel="nofollow ugc">Marcin Pietrzak</a></li>
</ul>
If you have created your own language pack, or have an update of an existing one, you can send <a href="https://codex.wordpress.org/Translating_WordPress" rel="nofollow ugc">gettext PO and MO files</a> to me so that I can bundle it into Tag list. You can <a href="https://plugins.svn.wordpress.org/tag-list/trunk/lang/tag-list.pot" rel="nofollow ugc">download the latest POT file from here</a>.

Tag list

Waterloo Plugins

Tag Cloud Widget adds a simple tag cloud widget that you can use anywhere on your blog. This plugin looks at all your tags and displays them in a widget. The more times a tag is used, the larger the tag is.
Each tag is a link to the tag page (e.g. http://your-site.com/tag/your-tag). This will help with SEO.
Currently, there aren’t any options to customize the tag cloud. It should work well out of the box. In the future, there may be options to customize the widget.

Good

A tag cloud widget with links to your tag pages

Tag list vs Tag Cloud Widget