Amazon Advertising (formerly AMS or Amazon Marketing Services) is a service that works in a similar way to pay-per-click ads on Google.
Bluefish is a free software text editor with a variety of tools for programming in general and the development of websites.
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.
Twitter is a 'microblogging' system that allows you to send and receive short posts called tweets.