The document discusses the benefits of open source software (OSS) and the Xen hypervisor. It explains that OSS provides shared resources through large developer and user communities, and is cost effective as software is freely modifiable. It then provides details on how the Xen hypervisor works, describing its role of allocating resources and creating virtual machines (VMs). It compares the shared resources and modifiable aspects of Xen, OSS, and the LiquidIQ platform.