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.
RequireJS is a JavaScript library and file loader which manages the dependencies between JavaScript files and in modular programming.
SWFObject is an open-source JavaScript library used to embed Adobe Flash content onto web pages.
Ubuntu is a free and open-source operating system on Linux for the enterprise server, desktop, cloud, and IoT.
VK is a Russian online social media and social networking service.