Google Hosted Libraries is a stable, reliable, high-speed, globally available content distribution network for the most popular, open-source JavaScript libraries.
Lightbox is small javascript library used to overlay images on top of the current page.
OpenResty is a web platform based on nginx which can run Lua scripts using its LuaJIT engine.
Prototype is a JavaScript Framework that aims to ease development of web applications.
SWFObject is an open-source JavaScript library used to embed Adobe Flash content onto web pages.
Twitter is a 'microblogging' system that allows you to send and receive short posts called tweets.