Google tends to release code and promote it without really using it much internally first. According to Brad Green, the Engineering Director over Angular, Goog

Google tends to release code and promote it without really using it much internally first. According to Brad Green, the Engineering Director over Angular, Google AdWords, Google Fiber, and some internal tools are all built with NG2. AdWords is kind of big deal to Google. Edit: source for AdWords reference, http://angularjs.blogspot.com/2015/11/how-google-uses-angular-2-with-dart.html http://angularjs.blogspot.com/2015/11/how-google-uses-angula...