Technorati tags are a special form of HTML-encoded keywords you can add to your posts. These tags are used to classify the contents of your weblog post. The Technorati service notices these tags and uses it when indexing your posts in its weblog search engine.
To enter tags for your post, make sure you are editing it first and then choose
To enter a new tag, click the + button. Check the box next to tags you want to add to your post. MarsEdit will add the tags to your post after you click the OK button.
Please see the Technorati Tags web page for more information about what these tags mean.