Solaris

• ACS Solaris System Administration getting started pages
• Sun BigAdmin — a portal for Solaris information.
• Sun BluePrints — articles explaining the "latest best practices using Sun solutions."

HP-UX

• ACS HP-UX System Administration getting started pages
HP-UX  11.x is HP recommendation.  HP-UX 10.20 was discontinued 6/30/2002; ACE 9912 is the last release.  HP-UX 11i  installing and updating documentation.

• HP-UX security and patch bulletins:  Archives by Month.
• Top HP-UX   software/documentation links (Hewlett-Packard Unix)
  
  Links to web sites for HP-UX ported software, 11.x and 10.x FAQs, HP-UX patches, HP FAQ, SunOS to HP-UX porting, HP Linux porting, HP-UX patches, HP FAQ, and HP and 3rd party hardware.

UNIX Associations

• USENIX/SAGE/LISA
USENIX: The Advanced Computing Systems Professional and Technical Association
SAGE: The System Administrators Guild

• Test your UNIX System Administrator skills