Pricing Page Teardown from ProfitWell - Data and banter behind the best (and worst) pricing pages
Steam Charts - An ongoing analysis of Steam's concurrent players.
SaaS Financial Plan - Customizable SaaS financial plan model
Steam Database - This tool was made to give better insight into the applications that Steam has in its absolutely huge database.
Financial Model - Financial Model for Planning, Launching, or Running Startups
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.