Apache is a free and open-source cross-platform web server software.
jPlayer is a cross-browser JavaScript library developed as a jQuery plugin which facilitates the embedding of web based media, notably HTML5 audio and video in addition to Adobe Flash based media.
jQuery UI is a collection of GUI widgets, animated visual effects, and themes implemented with jQuery, Cascading Style Sheets, and HTML.
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.
Linkedin Sign-In is an authentication system that reduces the burden of login for users, by enabling them to sign in with their Linkedin account.
reCAPTCHA is a free service from Google that helps protect websites from spam and abuse.