ImageOptim - Faster web pages and apps.
Toggl - Toggl is an online time tracking tool. It features 1-click time tracking and helps you see where your time goes. Free and paid versions are available.
Node.js - Node.js is a platform built on Chrome's JavaScript runtime for easily building fast, scalable network applications
Harvest - Simple time tracking, fast online invoicing, and powerful reporting software. Simplify employee timesheets and billing. Get started for free.
Ruby on Rails - Ruby on Rails is an open source full-stack web application framework for the Ruby programming...
RescueTime - Time management software that shows you how you spend your time & provides tools to help you be more productive.