Custom Module offers open source softwares like Joomla Modules, WordPress Themes, Prestashop Modules, Magento Modules, osCommerce Modules, Zencart Modules, Drupal Modules, vTiger Modules.
Open source software is very often developed in a public, collaborative manner. Open-source software is the most prominent example of open-source development and often compared to (technically defined) user-generated content or open content movements.