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LinuxJournal has a nifty article on how to build simple clusters with Ruby, based on real world experience from the National Geophysical Data Center. Article here

As you might already know, FreeSBIE is a LiveCD based on the FreeBSD Operating system, or even easier, a FreeBSD-based operating system that works directly from a CD, without touching your hard drive. Today, FreeSBIE 1.1 is released.

Here's yet another review of Fedora Core 3, this time at NewsForge.

The Users & Computers snap-in for Active Directory enables you to create Organizational Units (OUs) to set up an OUT Tree in the domain. This chapter coves setting up and managing OUs.

This article presents a multiple ways to keep the FreeBSD operating system up-to-date. It takes a FreeBSD 5.2.1 RELEASE system through a subset of security advisories to explain the different sorts of patches an administrator might apply.