Brent Maxwell

Archive widget that uses tag-cloud functionality to display archive links with relative size, like the tag cloud. Can also be pointed to custom post types.
<h3>Use and Options</h3>
Use just like the builtin archive widget

Archive Cloud Widget

Archive widget that uses tag-cloud functionality to display archive links with relative size, like the tag cloud.

lionelroux

WP Colorful Tag Cloud allows you to display a nice tag cloud using different colors. 
Colors are customizable and depend on tags weights (meaning occurences) and sizes. 
A lot of other customization parameters are available.
<a href="http://blog.websourcing.fr/wp-colorful-tag-cloud-plugin-for-wordpress-reference-page/" rel="nofollow ugc">See plugin website description and screenshots for a full description and a live demo</a>

WP Colorful Tag Cloud

WP Colorful Tag Cloud allows yu to display a nice tag cloud using different color. Colors are customizable and depend on tags weights (meaning occure …

Archive Cloud Widget vs WP Colorful Tag Cloud