Do you want access to Oracle systems technical information and experts?
Check out the Oracle Technology Network Systems Hub (OTN), a one-stop-shop offering community and resources for developers and deployers of Oracle products. The Systems Admin and Developer Community of OTN focuses on Oracle hardware (engineered systems, SPARC, storage), Solaris, Linux, and related software.
You'll find a plethora of information here -- from weekly "How-To-Tuesdays" (such as "How To Monitor Oracle Exadata Storage Servers") to blogs, videos, and announcements of new Oracle ACEs to the community.
A video that caught my eye today is called Hardware Matters When You Encrypt Your Database (in which Oracle ACE Erik Benner explains how to avoid database performance issues that can result from encryption).
If you're an IT administrator supporting Oracle systems, database, or applications, the OTN Systems Hub is a resource that I recommend you bookmark and visit regularly.