e-Commerce module for Drupal. Simply the biggest module for Drupal. Bigger than Drupal itself.
* Shopping cart and product 'look and feel' are themeable
* Create taxes, charges and discounts
* Subscriptions and recurring payments
* Receive donations
* Sell file downloads, shippable items, bundles or even customizable products
* Inventory management
* Payment and shipping plugins: The system can use PayPal, Authorize.net, e-xact, C.O.D or you can roll your own.
* Invoice generation and email notifications
* Transaction and payment workflows
* Reports and sales summaries
* Customers can review their order history
* Run an auction site
At one point, Open Hub analyzed source code for this project based on code location(s) available at that time. Since then, the code locations have been removed.