Just checking to see if an existing plugin does this, before I race out to code...
I'm using the "ultimate tag warrior" plugin, and as part of my index.php I have an output which uses the UTW_ShowRelatedPostsForCurrentPost("posthtmllist") function.
However, the function is a bit sparse for what I'd like.
What I'd like to add is a list of the tags the two posts have in common, like so...
Possibly related posts
* Post1_linked_name. Shared tags: tag1_linked_name, tag2_linked_name, etc.
* Post2_linked_name. Shared tags: tag1_linked_name, tag2_linked_name, etc.
This would allow you to see, "at a glance" how the posts are "possibly related" and how strongly they are connected.
Does anyone know of a plugin that could do this?