Under construction

Xen

http://www.cl.cam.ac.uk/Research/SRG/netos/xen/index.html

http://news.com.com/Xen+lures+big-name+endorsements/2100-7344_3-5581484.html

http://news.com.com/IBM+throws+weight+behind+multi-OS+push/2100-1016_3-5588129.html

http://www.zdnet.com.au/news/software/0,2000061733,39184207,00.htm

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UML

http://user-mode-linux.sourceforge.net/

http://www.golden-gryphon.com/blog/manoj/software/misc/manoj.2004.07.27.html

http://www.webhostingtalk.com/showthread.php?t=291979

http://www.webhostingtalk.com/showthread.php?t=461374 Debian

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Virtuozzo

http://www.sw-soft.com/products/virtuozzo/

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VMware

http://www.vmware.com/

http://www.vmware.com/products/player/

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FreeBSD Jail

http://www.freebsd.org/doc/en_US.ISO8859-1/books/arch-handbook/jail.html

http://www.freebsd.org/cgi/man.cgi?query=jail&sektion=8

http://docs.freebsd.org/44doc/papers/jail/jail.html

http://memberwebs.com/nielsen/freebsd/jails/

http://memberwebs.com/nielsen/freebsd/jails/jailutils/

http://barnson.org/node/139

http://www.section6.net/wiki/index.php/Creating_a_FreeBSD_Jail

http://sig9.com/node/261

http://anduin.net/jailctl/

http://search.cpan.org/~tboneca/BSD-Jail-0.01/Jail.pm

http://www.freebsddiary.org/jail.php

http://www.softpanorama.org/VM/jails_as_lightweight_vm.shtml Lots of info

http://www.informit.com/articles/article.asp?p=366888&seqNum=12&rl=1

http://www.samag.com/documents/s=1151/sam0105d/0105d.htm

http://www.bpfh.net/simes/computing/chroot-break.html

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Linux Vserver

http://linux-vserver.org/

http://www.unixshell.com/wiki/index.php/Creating_and_using_vserver_virtual_servers

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FreeVPS

http://freevps.com/

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ipsBSD ?

http://www.ispbsd.com/

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Comparison

http://bsd.slashdot.org/article.pl?sid=04/07/27/2053236&tid=172&tid=8&tid=7

http://lists.blu.org/pipermail/discuss/2003-December/018179.html

http://www.hostpronto.com/article/14

http://www.webhostingtalk.com/archive/thread/222656-1.html

http://www.ma1.se/movetovps.php