Joomla is a free and open-source content management system for publishing web content.
Nginx is a web server that can also be used as a reverse proxy, load balancer, mail proxy and HTTP cache.
ProvenExpert is a review based marketing platform that allows users to create customer surveys, provides aggregate reviews and ratings.
UIKit is the framework used for developing iOS applications.
YouTube is a video sharing service where users can create their own profile, upload videos, watch, like and comment on other videos.