In this webinar I discuss Entities and EnityAPI— why and when it would be beneficial to use a custom Entity type in a Drupal project. This is not a how-to, it is more of a why-to with a 10,000 ft view of an Entity code sample.
Experience Level: Intermediate to Advanced developers.
Blog Posts mentioned in the presentation:
http://drupal.org/project/examples
http://drupal.org/project/entity
Correction: The Meta tags module does not use custom entities.
Additional Resources:
Upgrading from Drupal 5 to Drupal 7