Came across several inactive groups that I plan to merge/delete based on not having any activity in one to several years, and potentially dubious or duplicate missions. Here are the notices I posted:
Handler group
http://groups.drupal.org/node/135864
Wastelands group
http://groups.drupal.org/node/135869
IBM group
http://groups.drupal.org/node/135849
Summer Training India Organizing
http://groups.drupal.org/node/135874