Virtual machine images
Virtual machine images with OS preinstalled
free virtual solution
- VirtualBoxes: Free VirtualBox® Images contains Linux, OpenSolaris & FreeBSD kernel OS
- VMware Virtualization: VMware Images free for vmware player
- OSBoxes - Virtual Machines for VirtualBox & VMware [Last visited: 2016-06-24]
- The Xen Project: Guest VM Images - Xen un-tested
- QEMU: Testing - QEMU un-tested
OS specific:
- Ubuntu: Ubuntu Cloud Images
- Windows: * Windows Virtual PC + IE App Compat VHD from Official Microsoft with different version of browser. For example you install IE v.6 on first virtual machine, and install IE v.7 on another virtual machine.
commercial virtual solutions
require $
- Linux AMI Virtualization Types - Amazon Elastic Compute Cloud
- About Virtual Machine Images in Azure
- Google Cloud Computing, Hosting Services & Cloud Support
- more on virtual machines cloud hosting (search keyword)
further reading
- Install the LiveCD on PC. Similar solutions for Win
& Linux 
- Check Browser Compatibility
