Virtualisering

VMWare Blogs

boche.net - VMware Virtualization Evangelist -
Datacenter Dude -
Gabes Virtual World -
Kendrick Coleman Blog - A technical blog focused on IT infrastructure
LucD Notes - PowerShell Ramblings
NTPRO.NL -
PowerWF - Visual Powershell
Scott Lowe - virtualization, storage, and servers.
The SLOG - SimonLong/Blog
The Virtual Storage Guy -
Virtu-Al.net -
VM/ETC -
VMGuru.nl -
vminfo.nl -
VMware ESXi Chronicles - discusses VMware ESXi features, support and highlights.
VMWare Tips -
VMware VROOM! Blog - Performance
vNuggets -
vSphere-land -
Yellow Bricks - is a personal Blog about virtualization(mostly VMware related) maintained by Duncan Epping.

VMWare ressurser

Flings - VMware Labs -
InventorySnapshot -
PowerGUI -
RVTools -
Starwind Free V2V converter (Require registration) - V2V conversion tool for virtual machines. You can use it to convert VMDK to VHD files and VHD to VMDK as well as to IMG file, which is a native StarWind format.
Ultimate ESX Whitebox - Find hardware for your own VMware ESX whitebox
vCheck (Daily Report) -
vGhetto Script Repository -
vm-help.com - the Unofficial VMware ESX Server Whitebox HCL.
VMDK-Handbook - Good resource about VMware VMDK-disk files.
VMware - Guest Operating System Installation Guide - includes instructions for installing supported guest operating systems.
VMware Compatibility Guide - Hardware compatibility
VMware KB Digest - Weekly digest of new knowledge knowledgebased articles from VMware
VMware Product Interoperability Matrixes -
VMware Support Insider - Vmware support news, alerts and announcements
VMware vCenter Converter Standalone - Automate and simplify physical to virtual machine conversions as well as conversions between virtual machine formats.
VMwareTechPub's Channel on YouTube.com -

OpenStack

DevStack - A documented shell script to build complete OpenStack development environments.
OpenStack - Open source software for building private and public clouds.
OpenStack Foundation Youtube channel -
OpenStack on Ubuntu -
RDO - RedHat OpenStack Community edition

Xen

Citrix Community Blogs -
Citrix XenServer -
Xen Community -

Ganeti

Ganeti - is a cluster virtual server management software tool built on top of existing virtualization technologies such as Xen or KVM and other Open Source software.
Ganeti - Image-based OS template -
Ganeti Documentation -
Ganeti Web Manager -

Virtual All-In-One Server

esxi-simple-web - Basic VM controls straight from the VMware ESXi host using your internet browser.
Nexenta Community Edition - Storage appliance
pfsense - is a free, open source customized distribution of FreeBSD tailored for use as a firewall and router.
PXE Ignite - is a PXE boot solution-in-a-box.
Untangle - multi-function firewall software.