• On drupal.org and related sites: the official information source
    • http://drupal.org/project/ecommerce EC main page
    • http://drupal.org/handbook/modules/ecommerce EC main handbook page
    • http://groups.drupal.org/e-commerce Drupal EC SIG. Very focused, targeted to developers, organized by topic.
    • irc://irc.freenode.net/drupal-ecommerce
  • On the Audean Wiki: developer-level docs
    • E-commerce paths
    • Themeable functions in E-Commerce
  • Resources from the current project maintainer
    • http://ecommerce.heydon.com.au/api Developer reference : an equivalent of api.drupal.org for EC
      • http://ecommerce.heydon.com.au/node/2 Maintainer list for various EC portions
    • http://lists.heydon.com.au/listinfo.cgi/ecommerce-heydon.com.au EC mailing list.
    • http://www.heydon.com.au/taxonomy/term/29 Blog section about EC
  • Other sites:
    • Drupal E-commerce Lots of selected resources for site builders, but not really focused on EC.
      • http://www.drupalecommerce.com/drupal_ecommerce EC-specific entry point
    • http://blog.riff.org/tags/e_commerce Drupal EC section on the Riff Blog
  • Isolated resources:
    • http://v2v.cc/node/96 Video from Matt Westgate (EC creator and first maintainer) introducing EC for 4.6 (OGG Theora codec)
    • http://osddp.org/node/287 E-commerce service subscription and editing with Drupal. The last comment contains the final PDF version of this HOWTO describing how to set up a service sale on 4.6.