Programming languages

Drupal: Community plumbing and CMS

PHP: Hypertext Preprocessor

JavaScript: THE scripting language of the Web.

Cascading Style Sheets: setting the style for your website.

sql: a multithreaded, multi-user database management system which has more than 11 million installations. The basic program runs as a server providing multi-user access to a number of databases.

e-commerce

Shopping cart
Subscriptions and recurring payments
Receive donations
Sell file downloads, shippable items, bundles or even on-the-fly customizable products
Payment system can use PayPal, Authorize.net, eWAY, C.O.D. and more
Invoice generation and email notifications
Reports and sales summaries
Customers can review their order history