What does Software as a Service (SaaS) have to do with Open Source? Not much, you might think. Or maybe you've noticed that the FSF extended the spanking new GPL3 to the Affero Licence--to deal with SaaS providers? It does not help Open Source Software makers to make more money, so who cares? Well, OSS makers should care, as SaaS may finally give them a business model that may finally bring them some money.