CacheFly is a content delivery network (CDN) which offers CDN service that relies solely on IP anycast for routing, rather than DNS based global load balancing.
HTTP Strict Transport Security (HSTS) informs browsers that the site should only be accessed using HTTPS.
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.
Open Graph is a protocol that is used to integrate any web page into the social graph.
reCAPTCHA is a free service from Google that helps protect websites from spam and abuse.
TrafficStars is a self-served ad network and ad exchange that operates mainly in adult-related verticals.