Microsoft Virtual PC

Microsoft Virtual PC 2004
Software virtualization solution that allows to run multiple PC-based operating systems simultaneously on one workstation. News, product information.
http://www.microsoft.com/windows/products/winfamily/virtualpc/default.mspx

Microsoft Virtual Server 2005
Product information, case studies and resources for the server edition of Microsoft's virtual machine solution.
http://www.microsoft.com/windowsserversystem/virtualserver/

Robert Moir
Virtual PC 2004 FAQ and forum.
http://www.robertmoir.co.uk/win/VirtualPC2004FAQ.html

Steve Jain: VPC/VS Downloads
Guest machine images, utilities and installation guides.
http://vpc.essjae.com/

Virtual PC Guy's WebLog
Weblog of Ben Armstrong, Program Manager of Microsoft's Virtual machine team.
http://blogs.msdn.com/virtual_pc_guy/

What Works and What Doesn't in Virtual PC 2004
Lists over 600 operating system versions and whether they are known to work on VPC.
http://vpc.visualwin.com/