Corresponding node references is a module I contributed to drupal.
What does it do:
It syncs the node reference between two node types which have a nodereference to each other, so double editing nodes is no more needed. If one node has a reference the other node receives also a reference to the saved node if it is referenced in that node.
The blog contains tips for using the Drupal content management system/framework.
Dominique De Cooman is a drupal developer consultant working in Antwerp and Living in Gent. Feel free to contact me to hire me for your projects