Y Combinator Companies - Interactive list of all 1000+ YC companies
Datamatic.io - Datamatic - WordPress for data visualizations
Apply to YC (Y Combinator) - Curated collection of resources for founders applying to YC.
Whatagraph - Whatagraph is the most visual multi-source marketing reporting platform. Built in collaboration with digital marketing agencies
Startup School - How to start a startup, by Y Combinator
Microsoft Power BI - BI visualization and reporting for desktop, web or mobile