I work as a course developer in IBM, where I write classes about Tivoli security products. It's an interesting job most of the time and lets me hone my writing skills, but most of the resulting course material is IBM's intellectual property. If you want to see it, you'll need to take a class. There are a few exceptions that are publicly available for your reading pleasure (or pain, depending on how much you enjoy reading about these subjects):
Mainframe Basics for Security Professional - Getting Started with RACF. If you already understand computer security, this book will teach you how to apply this knowledge to z/OS, IBM's mainframe operating system.
The Linux Kernel Module Programming Guide. I wrote the first two versions of this book. I stopped updating it in 1999, but it is still maintained by Peter Jay Salzman and Michael Burian.
IBM Global Security Kit 7.0: Managing certificates. This whitepaper explains certificates and SSL at a very basic level. No math required.
IBM Tivoli Access Manager for e-business: Junctions and Links. This whitepaper explains the interaction between TAMeb junctions and links, and how to ensure links work correctly through TAMeb.
IBM Tivoli Access Manager for e-business: Tracing HTTP Connections. This whitepaper explains how to trace HTTP connections through WebSEAL.
Monitor Mainframe Sessions Remotely. This article teaches you how to "eavesdrop" on PCOMM sessions to monitor student progress in remote labs.
Building Virtual Networks with VMWare and Knoppix. This whitepaper explains how to build a complex virtual network, using VMWare and Knoppix, to create lab environments for classes.
Adding New Components to IBM Tivoli Directory Integrator 6.1. This whitepaper explains how to expand ITDI 6.1 with additional components written in Java.
IBM Tivoli Identity Manager 4.6 - Extending Workflows with Java. This whitepaper teaching how to extend the workflow engine for Tivoli Identity Manager 4.6 with additional components written in Java.
Technically speaking, I don't write those. Instead, I come up with an invention and if IBM thinks it is good enough a patent attorney writes them. Still, they are my ideas and I'm proud of some of them.