Virtual machines

- VMware 
  - VMware server *: Virtualization on windows/linux, free
    - Step-by-Step VMware Server Setup Tutorial 
    - Support ended on 6/30/2011, replaced by:
      - VMware Player *: Free, support 1-2 virtual machines
      - VMware vSphere Hypervisor: Free, support buyable
      - VMware vSphere: 30-day evaluation. For cloud (e.g., >100 virtual servers)
  - VMware Workstation: 60-day evaluation. 
  - VMWare Fusion: Run windows on Mac, free to try, $49.99 to buy.
  - Comparison between VMware Workstation, Player and Server
- Bochs 

- QEMU 

- Oracle VirtualBox