ImageOptim - Faster web pages and apps.
HackerWeb - A simple and readable Hacker News app
Node.js - Node.js is a platform built on Chrome's JavaScript runtime for easily building fast, scalable network applications
HNwatcher - Track keywords and users on Hacker News
Ruby on Rails - Ruby on Rails is an open source full-stack web application framework for the Ruby programming...
Hacker News Stack - Focus on the really fresh and unread news in Hacker News.