Tools
Languages & Frameworks
Ruby on Rails - Ruby on Rails (or RoR) is the emerging yet widespread and stable Web framework to rapidly deploy and update Web 2.0 applications. It drastically reduces development time and allows us to focus on usability because there's less code. www.rubyonrails.org
PHP - PHP used with the Symfony or Zend frameworks for enterprise-level deployment of PHP applications.
www.php.net
www.symfony-project.org
www.zend.com
Content Management Systems
Joomla - Joomla is the leading open-source and free Web content management system. www.joomla.org
Expression Engine - Expression Engine is a commercial alternative to Joomla. Although it is not free, its administration is easier and its design cleaner. www.expressionengine.com
WordPress - WordPress, the leading blogging software, offers a great alternative to a more comprehensive content management system for simple sites. www.wordpress.org
E-Commerce
Magento - Magento is an emerging open-source platform designed for PHP. Unlike ZenCart and OSCommerce, its design is cleaner and its administration piece more user-friendly.www.magentocommerce.com
BV Commerce - BV Commerce is a turnkey e-commerce solution for ASP.NET. www.bvsoftware.com