U Bike
Share bikes have become very popular in many major cities in recent years. Personally I don't like riding bikes because I think it's too dangerous to cycle on the road with other traffic. However I do agree with the concept as its a great way to reduce overload on public transport and pollution from driving.
These are the share bikes in my city, they're called U-Bikes. I may not use the service, but they're great for photography.
