Amazon CloudFront is a fast content delivery network (CDN) service that securely delivers data, videos, applications, and APIs to customers globally with low latency, high transfer speeds.
Ruby on Rails is a server-side web application framework written in Ruby under the MIT License.
Ruby is an open-source object-oriented programming language.
Twitter is a 'microblogging' system that allows you to send and receive short posts called tweets.
WEBrick is a lightweight HTTP server library in Ruby, included in the standard library, primarily used for local development and testing of Ruby web applications.