I started using this on the PodcastAlley.com blog awhile back but decided to start tagging my own blog now as well. If you are interested in an easy solution to add tags with links to technorati as well, thien I suggest this plugin. If anyone knows of something better, please let me know.
BunnyÃ¢â‚¬â„¢s Technorati Tags provides you with template function to easily display Technorati tags for your posts. The tags are stored in a Custom Field, so this plugin does not require any modifications of the database structure. The plugin adds a text input for that custom field in the appropriate admin pages.