Open source to most people might means free. A user sees a bug, they consult the community, a fix is offered, an update is made and the user keeps on using the software they downloaded for free in the first place. Yet Adobe brings in €6 billion a year and Canonical makes $100 million a year. Companies like Oracle have a firm commitment to open source projects and still have revenues exceeding $37 billion per year. So, if there is big money in open source software, where does it come from?