Apache is a free and open-source cross-platform web server software.
Add a respsonsive image slider to any website.
CakePHP is an open-source web framework. It follows the model–view–controller (MVC) approach and is written in PHP.
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.
Twitter is a 'microblogging' system that allows you to send and receive short posts called tweets.