AngularJS is a JavaScript-based open-source web application framework led by the Angular Team at Google.
Google Cloud Trace is a distributed tracing system that collects latency data from applications and displays it in the Google Cloud Console.
hCaptcha is an anti-bot solution that protects user privacy and rewards websites.
Open Graph is a protocol that is used to integrate any web page into the social graph.
YouTube is a video sharing service where users can create their own profile, upload videos, watch, like and comment on other videos.