Taxonomy Garden: Taxonomy Association

taxonomy_assoc The taxonomy_assoc module lets you display a node - along with the usual node listing for that term - when you view a taxonomy term. The node can be used instead of (or as well as) the description that taxonomy_context outputs. Unlike raw descriptions, however, nodes can be commented on, can have filters applied to them, and can be used in a number of other ways.

The attached image shows the assignment of content by category