This module enables to associate nodes according to different criteria such as Taxonomy and CCK fields.
You can give a different weight for each criterion. All criteria will be aggregated by the main module which compute a matching score for each couple of nodes.
Then, for a given node, you can get the other nodes that are associated to it. The associated nodes are ordered by the matching score they have with the given node.
Different associations can be defined with their own criteria and weight.