http://en.wikipedia.org/wiki/Freemium http://en.wikipedia.org/wiki/Freemium "Freemium is a business model which works by offering basic services for free, whil

http://en.wikipedia.org/wiki/Freemium http://en.wikipedia.org/wiki/Freemium "Freemium is a business model which works by offering basic services for free, while charging a premium for advanced or special features."