AirVisual - Air quality information you can trust
Grover - Rent electronics for a month & try it before you buy.
Air Matters - Providing real-time Air Quality Index & Allergy Pollen & Weather Data, as well as Protection Recommendations and Forecast.
Lumoid Locals - Peer-to-peer marketplace for short-term gadget rentals
Buycott - Buycott helps you organize your everyday consumer spending to support causes you care about.
Nespresso Index - The caffeinated version of the Big Mac Index.