VMware KB articles

There's very interesting code specific Knowledge Base articles to be found.

Recommended values in the soapAction field when forming Soap Requests for vSphere API

Changing or blocking the default ports 80 (http) and 443 (https) on ESX hosts

What is the syntax for vmware-cmd createsnapshot?

Collecting VIX diagnostic information

Enabling logging for Likewise agents on ESX/ESXi 4.1

Recording ESX or ESXi VMkernel state with vsi_traverse

Checking cpuinfo information on an ESXi host

Most of Williams articles can be considered "Knowledge base" type of articles, so just adding them here (might be easier to just add a link to the site, read all his posts!)

Get OVF Runtime Environment for vApp via VMware Tools or ISO

Copy VMs Directly Between ESXi Hosts Without Shared Storage using ovftool