In "Four Degrees of Sharing," Shareable contributor Janelle Orsi imagines a shared car on every block. We're not there yet, but cities and campuses across the country do have carsharing services like Zipcar and City Car Share. A big obstacle to carsharing is, of course, perceived inconvenience: What if I just need to hop in my car and go?

Now Zipcar is offering a free app for iPhone and iPod Touch, which uses Google Maps to provide information about available cars. In some respects, this kind of service makes carsharing more convenient than car ownership for life in big cities–how many times have been in some part of the city and suddenly needed a vehicle? Now I can just check my iPhone and head to the closest Zipcar pod. 

Jeremy Adam Smith


Jeremy Adam Smith

Jeremy Adam Smith is the editor who helped launch He's the author of The Daddy Shift (Beacon Press, June 2009); co-editor of The Compassionate Instinct (W.W. Norton

Things I share: Mainly babysitting with other parents! I also share all the transportation I can, through bikes and buses and trains and carpooling.