Israeli translation company Babylon has seen its revenue double to $121 million thanks to moving from a paid-for service to a free service with advertising. Net profit has tripled. Babylon intends to list on NASDAQ during 2013.
http://www.reuters.com/assets/print?aid=USL5E9C78ZR20130108
http://www.youtube.com/watch?v=I3cY4RcIvAI