Steam Inventory Helper - Steam Inventory Helper is a free browser extension for Google Chrome that adds a big amount of new features into the Steam trade-offer system & Steam store functionality.
Sick Day Box - Everything you need to survive a sick day in one kit.
Augmented Steam - Enhanced Steam fork by IsThereAnyDeal.
AdaBox - Curated DIY electronics projects to your door
Steam Tools Hub - A set of Steam related WebApps built around trading cards, emoticons and backgrounds.
Xbox Game Pass - Subscription model for gaming on the Xbox One