I've been using Tinyaus plugin RN Related Posts for a while and it's been working ok. But when I wanted some more fancy stuff I ended up needing to rewrite more and more of his plugin. So as a Habari-plugin-writing exercise I rewrote it from scratch and ended up with my own RelatedPosts (download zip) plugin.RelatedPosts checks the current post's tags and "searches" for other posts with the same tags. When it's been debugged and cleaned up I'll add it to -extras.It now have a home in -extra.