This document provides an overview and comparison of popular JavaScript frameworks Angular, React, and Ember. It describes each framework's founding date, creator, license, popular websites that use the technology, ideal use cases, features like data binding, reusable components, and level of opinionation. Angular was founded in 2009, created by Two-way data binding and reusable components via Angular Components. React was created in 2013 and is less opinionated with one-way data binding. Ember was founded in 2007 and offers two-way data binding with a widget-based component approach.