AngularJS is a JavaScript-based open-source web application framework led by the Angular Team at Google.
Firebase is a Google-backed application development software that enables developers to develop iOS, Android and Web apps.
Google Analytics is a free web analytics service that tracks and reports website traffic.
Nginx is a web server that can also be used as a reverse proxy, load balancer, mail proxy and HTTP cache.
Open Graph is a protocol that is used to integrate any web page into the social graph.