1) Install a virtual machine on your box (VMWare, KVM, OpenVZ, VirtualBox, etc.)

2) Repeat #1 for a different VM.

3) Repeat #1 for a different VM.

4) Make one VM run postfix in a basic setup.

5) Make one VM run mysql in a basic setup.

6) Make one VM run Apache in a basic setup.

7) Write me a one page paper telling me which VM is best
  What features does it have?
     File system features
     Network Features
     Emulated devices
     USB
     Live Migration
     Live in a partition
  How is it's performance and overhead?
  How easy is it to administer?

8) Add something to the Wikipedia web page for one of the VMs
that makes it better.
   Comparision
   Screen Shots
   Chart
   History
   See Also
   Web Links