http://www.onlinegamingfun.com/online-gaming-revenue-recognition/

Video Games Lead Innovation In The E-Services Economy
The video games industry is leading the overall trend of transformation of digital products into e-services, according to the report “Born digital/ Grown digital – Assessing the future competitiveness of the EU video games software industry” published today by the European Commission’s Joint Research Centre. Online games, for example, play a major role in the digital content convergence process …
POGO – Life of an Online Game – Epilogue