I had seen a couple of “Related Posts” implementations for WordPress and other blogs and they did not really make much sense to me. Once I had the code for contextual searches, the related posts plugin was a simple extension of that search code.
This plugin has the following features:
-related posts from your own blog, so more linkage
-extremely customizeable output
-links listed according to relevance
-”fuzzy” matching of posts/titles
-very easy install
You can see an implementation of this on this blog. Just click on the permalink of any entry and look for the titles at the bottom of the post content.
Download the plugin from here:
Download the updated version of Contextual Related Posts.