Google Analytics is a free web analytics service that tracks and reports website traffic.
Network for Good is an American certified B Corporation software company that offers fundraising software and coaching for charities and non-profit organisations.
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.
Ruby on Rails is a server-side web application framework written in Ruby under the MIT License.
YouTube is a video sharing service where users can create their own profile, upload videos, watch, like and comment on other videos.