IBM's official Visio collection with the pSeries UNIX Servers, iSeries Servers, BladeCenter and associated products

IBM eserver: High Performance Computing (HPC)

Andrews Consulting Group: IBMs AIX 5L examination (as .pdf)

Maximum Press: Exploring IBM eserver pSeries

Universial Command Guide (AIX, OpenBSD, Linux, Solaris, Unix and Linux Shells)

Comparison of AIX, FreeBSD, HP-UX, Linux, Solaris und True64 adminstration commands

Another AIX link collection: www.rootvg.net, “the independent AIX information and support platform”

Windgate Software LLC: RISC Analysis

New publication for pSeries and RS/6000 professionals: eServer Magazine, IBM edition for UNIX