I updated my WordPress blog the other day to version 2.3 and noticed a clever new feature. Now, when I write a post, there is a small field at the bottom of my editor for tags. Tags are like categories, but you can make a bunch more of them without cluttering things up.
I started using this neat new feature and am very happy with it. When I place a few tags (words) in my post, they are recorded and displayed at the bottom of each post. The blog also automatically takes those tags and find any related posts and displays them as well. Basically, related posts are just other blog entries with the same tags.
Take a look and become mad jealous.