AngularJS is a JavaScript-based open-source web application framework led by the Angular Team at Google.
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.
Materialize CSS is a front-end framework that helps developers create responsive and mobile-first web applications. It is based on Google's Material Design guidelines.
Moment.js is a free and open-source JavaScript library that removes the need to use the native JavaScript Date object directly.
Paper.js is an open-source, vector graphics scripting framework, which offers a powerful Scene Graph and extensive functionality to create and manipulate graphic items using layers, gradients, blending, and other advanced features
Twitter is a 'microblogging' system that allows you to send and receive short posts called tweets.