DoubleClick Ad Exchange is a real-time marketplace to buy and sell display advertising space.
ExpressionEngine is a free and open-source CMS.
Google AdSense is a program run by Google through which website publishers serve advertisements that are targeted to the site content and audience.
Google Analytics is a free web analytics service that tracks and reports website traffic.
LiteSpeed Cache is an all-in-one site acceleration plugin for WordPress.
Nginx is a web server that can also be used as a reverse proxy, load balancer, mail proxy and HTTP cache.
YouTube is a video sharing service where users can create their own profile, upload videos, watch, like and comment on other videos.