Looking at co-creation as a business model

This dutch article investigates the business that has developed around large players in the digital domain, like eBay, Apple and Google. Services are developed to help you sell on eBay, or accesories are developed for using the Apple iPod as a radio. Add-ons to the business by third parties, called 'feeder business'. It is another example of users getting interactive and co-creative, producing material around a basic service or product and getting paid for that. Apple is asking a share of the profit and is choosing to embrace this development, offering the products for sale with their main offerings, instead of fighting over IPR. I think it is the new business model in a crossmedia environment.
Emerce - Media/Marketing: Feeder business: slim of slinks?