Dreamweaver is a development tool for creating, publishing, and managing websites and mobile content.
jQuery CDN is a way to include jQuery in your website without actually downloading and keeping it your website's folder.
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.
LiteSpeed is a high-scalability web server.
Twitter is a 'microblogging' system that allows you to send and receive short posts called tweets.