AutoTags

Basing on WordPress Plugin « tagthepress » .It using for tag suggestions by Yahoo cas API http://tw.developer.yahoo.com/cas/

With this plugin, you will be able to use the the Web service for your posts. Just click on Fetch tags and the title, content and optional excerpt of your post will be analyzed by Yahoo cas API in order to find words that could be useful as tags.

It currently works with English, Chinese