As of 2006-08-25
*updated 2006-08-2005*
Here is a collection of Wordpress Plugins that use Technorati in some way shape or form.

• TechnoTag
  Adds a Tags button to the post editor which you add a list of tags to.
• WP-CaTT: WordPress Category Technorati Tag Plugin
  Add (t) to the end of each category in the post: Tagging(t)
• My Technorati Tag Cloud
  Add your Tags from Technorati as a Tag Cloud to your sidebar.
• Cosmos link plugin for WordPress
  Adds 2 Technorati links to your post: one to see who else is linking to the post and one to add the post to your watch list.
• Bunny’s Technorati Tags
  Adds a textbox to the post edit form that you can add Technorati tags to.
• MightyTechno
  This will convert tags from your configuration page into links to search your site. *I hacked mine to do a Technorati Tag search instead of a local search.