Google AdSense is a program run by Google through which website publishers serve advertisements that are targeted to the site content and audience.
i-mobile is a advertising platform for clients to advertise their product and for publishers to monetize their cyberspace.
OpenResty is a web platform based on nginx which can run Lua scripts using its LuaJIT engine.
Twitter is a 'microblogging' system that allows you to send and receive short posts called tweets.