ImageOptim - Faster web pages and apps.
DisplayFusion - DisplayFusion will make your multi-monitor life much easier.
Node.js - Node.js is a platform built on Chrome's JavaScript runtime for easily building fast, scalable network applications
Mizage Divvy - Divvy is an entirely new way of managing your workspace.
Ruby on Rails - Ruby on Rails is an open source full-stack web application framework for the Ruby programming...
WindowGrid - Quickly and easily layout windows on a dynamic grid using just the mouse.