Module Link: http://drupal.org/project/backreference The BackReference module causes your node reference field to back populate to the current node. While some modules of this type use additional tables to maintain the relationship this one just fills in a node reference field on the receiving end.
Who: Technical and non-technical users. When: Use this module when you need to track node references in reverse but still want the full advantage of having that back reference stored inside the node so you can do node like things to it (views, etc). Where: When you add a node reference field you'll see an additional option to map that field to another node reference field. Why: It's just a different way to store reversed node references. It feels like it's doing things in more of a Drupal way.
