ScottSM has written a folksonomy plugin for WordPress!
* v0.21 12-15-2007:
o Fixed overlap between tag add and comment add $_POST variables
* v0.2 12-15-2007:
o Added Control Panel
o Added Subscribers Only and Authorize Tags options
o Tracks submitted tags
o Added Delete and Accept Tag actions
* v0.1 12-14-2007:
o A rough public tag adder
I’ll be installing this on Haibane.info as soon as I get a chance. I need to modify my template for tags support first so it might take me a few days. However this is one plugin that I think is a real game-changer.
Scott, I highly encourage you to submit this to the WordPress Weblog Tools Collection blog.