Last week one of my students pointed me to an interesting site. The Holy Hypervisor contains columns written in Dutch and English the content raised my eyebrows and changed my point of view.
The site is dedicated to the hypervisor. The hypervisor saves you money, and that's what makes it great! It can also make some other things easier. Along with the money saving, it makes the hypervisor one of the most pleasant things in computing. What it does you ask? It partitions a piece of hardware in more pieces of virtual hardware, so it seems like you have more hardware than you actually purchased.