uLouder - Modern Craigslist and Nextdoor for urban nomads
Grover - Rent electronics for a month & try it before you buy.
Explore nearby places for Airbnb - Discover must-see places when browsing Airbnb (Chrome ext)
Lumoid Locals - Peer-to-peer marketplace for short-term gadget rentals
Whereabouts - Write posts and chat (group or 1-on-1) with people nearby!
CUPS - Discovery and payment platform for the best local cafes