Since GNU and all the other open source licenses won't let you achieve your commerical goals, you have to bank on legal technicalities. Not entirely sure, but

Since GNU and all the other open source licenses won't let you achieve your commerical goals, you have to bank on legal technicalities. Not entirely sure, but I'd say Magento uses one of the following ways. They claim open-source, but I was never able to figure out how. Summary 1. Dual license. Add value through closed-source features, services, etc... on the commercial licensed. 2. Have your commercial product piggyback on the open-source creation. 3.Software as a Service. 4.Offer support, consulting, some type of service to assist the (free)open source product. For a larger introduction go to http://en.wikipedia.org/wiki/Commercial_open_source_applications http://en.wikipedia.org/wiki/Commercial_open_source_applicat... Does anyone know how mSQL was structured before it got sold?