Apache is a free and open-source cross-platform web server software.
Bandsintown Events Widget is a free widget which makes it simple to embed your event listings and allow fans to buy tickets, RSVP, follow you and join your Email & SMS lists.
Open Graph is a protocol that is used to integrate any web page into the social graph.
Varnish is a reverse caching proxy.
YouTube is a video sharing service where users can create their own profile, upload videos, watch, like and comment on other videos.