hello, first i hope its ok to post this here! we have written an big "virtualization technology & vps hosting handbook" including xen/vmware/openvz/virtuozzo/sun-solaris/usermodelinux,... -and also an description of different technology aspects of virtualization (how it works, what is virtualization, paravirtualization, os-level virtualization,...) maybe somebody can review this handbook and mail me some hints or maybe errors we have in the handbook? if so please mail your hints to: webmaster (at) pushfish.com it was hard work (totaly about 3 months) -> and so i hope the handbook helps to make better understanding of virtualization & vps link: http://searchyourwebhost.com/web-hosting/articles/virtualization-vps-server-handbook-chapter-1 regards, Chris