This plugin adds a widget that enables the user to add a tag cloud linking to Technorati in their sidebar by dragging and dropping a widget. It uses WordPress 2.3’s native tagging/taxonomy system.
In case this plugin does not work for you, first check if you are using, or have upgraded to WordPress 2.3, as this plugin requires the new tagging system. Also, the theme you are using should be widget-friendly. You may send your questions, comments, suggestions, and requests for help to will [at] gormful [dot] com or simply leave a comment on this page.