Uber is not only a cab revolution but also questions car ownership!

http://blog.uber.com/2013/03/04/economics-of-car-ownership/

http://www.uctc.net/access/38/access38_carsharing_ownership.shtml

http://www.nytimes.com/2014/06/12/technology/personaltech/with-ubers-cars-maybe-we-dont-need-our-own.html?emc=edit_ct_20140612&nl=technology&nlid=17683848