I built this JSON viewer specially designed for HS developers. It have features like: minizing nodes (arrays or lists). Generate and auto copy snippet of the clicked element (key or value). And some visual tweakings to see it confortably. Also you can copy the whole response and it will be pure text without HTML elements. So nice, isn't it?
Boot to Gecko aims to create a complete, standalone operating system for the open web.
HTML5 Tetris Game for jQuery
A Node JS app to get up and running with the HubSpot API using OAuth 2.0