The pace of development has been picking up over at Tagifields. Originally launched in July 2005, the site has undergone some changes, and its usefulness is definitely improved.
At first glance, it looks a lot like del.icio.us. Users provide tags in an open folksonomy that help direct interest to their posts. However, instead of simply providing a link or a bookmark, a Tagifields entry is an actual post. Just like a regular bulletin board system, except with open categorization.
Here is how creator Josh describes his site:
Users' entries are tagged with their usernames as well, providing an easy way to follow threads or to read all of a single user's posts.