If making money from open source was hard, extracting it from clouds might prove to be even more difficult. Particularly when your main rival on the x64 server is none other than Microsoft. Red Hat got its start as Linux magazine publisher that tucked a Linux CD in the back, and then evolved into the largest commercial Linux distributor in the world. The company added middleware from JBoss and created other middleware, such as its Enterprise MRG messaging, grid and realtime Linux variant, and virtualization software for desktops and servers. And now it has to position itself as an alternative to Microsoft as the platform upon which customers can build x64-based clouds.