This document discusses technology choices for corporate applications like CRM and ERP. It recommends open-source stacks for building portals, e-commerce sites, and CRM systems using frameworks like Drupal, Joomla, Magento, Prestashop, SugarCRM, and platforms like Zend, OroCRM, and Tine20. It also mentions ERP options like Marello and Inoideas that use open-source technologies.