StickerRide - Let your car earn money through advertising
Grabb-It - Location-based ads on your Uber's window
KarmaCircles - Advise others or receive free advice from 14000+ experts
Wrapify - Connecting drivers + brands to create on-vehicle advertising
Spacewolff - P2P marketplace for ads. Turn excess space into ad space.
Rentork - Rent your data and get paid for ads you see online