Drupalcon Denver 2012 - Drupal Commerce Contrib Overview
Drupal Commerce provides a lean core of commerce functionality, which is meant to be extended with contrib modules for common use cases. But there are hundred of different use cases, and Drupal Commerce on its own can't cover it all. And that's where the magic of the Drupal community comes in. These days everyone is writing a Commerce module. Shipping, stock, migration, affiliation, payment methods, lions, tigers and more! (OK, maybe not lions and tigers). Currently there are more than 50 solutions already implemented and contributed back.