Google Hosted Libraries is a stable, reliable, high-speed, globally available content distribution network for the most popular, open-source JavaScript libraries.
Nginx is a web server that can also be used as a reverse proxy, load balancer, mail proxy and HTTP cache.
Prototype is a JavaScript Framework that aims to ease development of web applications.
Yandex.Metrica is a free web analytics service that tracks and reports website traffic.
YooMoney is an IT company working with electronic payments on the Internet, creating and supporting financial services for individuals and businesses.