Adobe Flash is a multimedia software platform used for production of animations, rich web applications and embedded web browser video players.
DDoS-Guard is a Russian Internet infrastructure company which provides DDoS protection, content delivery network services, and web hosting services.
jQuery is a JavaScript library which is a free, open-source software designed to simplify HTML DOM tree traversal and manipulation, as well as event handling, CSS animation, and Ajax.
Lightbox is small javascript library used to overlay images on top of the current page.
reCAPTCHA is a free service from Google that helps protect websites from spam and abuse.
Yandex.Metrica is a free web analytics service that tracks and reports website traffic.
YouTube is a video sharing service where users can create their own profile, upload videos, watch, like and comment on other videos.