Apache is a free and open-source cross-platform web server software.
jQuery is a JavaScript library which is a free, open-source software designed to simplify HTML DOM tree traversal and manipulation, as well as event handling, CSS animation, and Ajax.
Moodle is a free and open-source Learning Management System (LMS) written in PHP and distributed under the GNU General Public License.
OWL Carousel is an enabled jQuery plugin that lets you create responsive carousel sliders.
RequireJS is a JavaScript library and file loader which manages the dependencies between JavaScript files and in modular programming.
YouTube is a video sharing service where users can create their own profile, upload videos, watch, like and comment on other videos.