Understanding Drupal breadcrumbs

Drupal has lots of neat functionality built right into it. However, getting this 'free functionality' to bend to your will can be another matter. Breadcrumbs in Drupal can be extremely annoying if you expect them to 'just work'. Andrew Sterling Hanenkamp wrote up a nice little article that sheds some light on Content Organization in Drupal.
http://contentment.org/2007/04/manipulating-the-drupal-breadc.html