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.
Shelf Engine - Vendors get paid for only products they sell
World Air Quality Index - Air quality index for the globe
Nespresso Index - The caffeinated version of the Big Mac Index.
BreezoMeter - Health-focused Environmental Intelligence