Byte - Build a dolphin party. A wild app from the founder of Vine.
Grover - Rent electronics for a month & try it before you buy.
Shelf Engine - Vendors get paid for only products they sell
Lumoid Locals - Peer-to-peer marketplace for short-term gadget rentals
Staats - Your personal trading card
Nespresso Index - The caffeinated version of the Big Mac Index.