I’ve compiled a list of links to sites containing Oracle-related information.

• Internals-Related Links
• Security-Related Links
• DBA-Related Links
• Performance-Related Links

Internals-Related Links
The following links are related to other consultants and engineers who focus on Oracle Internals research:

• Tanel Põder
  Tanel is an Oracle Certified Master and OakTable member with 10 years of experience managing and improving Oracle-based database and application environments, troubleshooting, tuning, also delivering training classes for Oracle Education and partners. Currently he is particularly focused on researching Oracle 11g internals. His site contains several detailed presentations as well as several useful scripts and utilities.
• Julian Dyke
  Julian is an England-based independent consultant who specializes in Oracle databases and is an OakTable member. On his site, you’ll find several fairly detailed and well-written presentations regarding transaction, SGA, library cache, REDO, index, IOT, and RAC internals.
• Jonathan Lewis
  Jonathan is a UK-based independent consultant with 15 years of Oracle experience. Beyond specializing in independent design and troubleshooting, he is also the author of several books; his latest being Cost-Based Oracle Fundamentals.

Security-Related Links
The following links are related to other consultants and engineers who focus on Oracle Internals research:

• David Litchfield
  David is an Oracle database security expert. In addition to having written two quite detailed books on the subject, the Database Hacker’s Handbook and the Oracle Hacker’s Handbook, he provides consulting services through Next Generation Security Software.
• Pete Finnigan
  Pete is a database security consultant and founder of PeteFinnigan.com Limited, a UK-based company specializing in providing Oracle database security audits and Oracle database security training. His site contains several useful utilities (both free and commercial), as well as many detailed articles, presentations, and documents related to Oracle security. One of his most popular presentations seems to be How to unwrap Oracle PL/SQL.

DBA-Related Links
The following links are related to other consultants and engineers who focus on Oracle Internals research:

• AskTom
  Tom Kyte, Vice President of Core Technologies at Oracle, provides a detailed Q&A forum for generally advanced questions. Tom also has a personal blog.
• Jonathan Gennick
  Whether you’ve read one of Jonathan’s books or one of his many articles in Oracle Magazine…
• The Oracle FAQ
  The Oracle FAQ puts a wealth of information at the fingertips of Oracle professionals all over the world.

Performance-Related Links
The following links are related to other consultants and engineers who focus on Oracle Internals research:

• Kyle Hailey / Performance Vision
  It’s hard to research Oracle performance without running across one of Kyle’s papers, articles, or examples. Kyle is a well-established and world-recognized Oracle performance and tuning professional.
• Greg Rahn
  When it comes to performance and scalability, Greg takes a coherent, applied, and example-filled approach to illustrating Oracle features as well as performance issues and their solutions.
• Kevin Closson
  Kevin’s blog is a must-read for anyone interested in databases and systems architecture.  Kevin easily describes the complex interaction and bottlenecks often found between software, hardware, and storage systems.
• Hotsos
  Simply stated, the Hotsos response time profiling method makes trial-and-error tuning obsolete. By providing clients with our Performance Suite of solutions, as well as offering training, consulting services and technical support, Hotsos will improve your Oracle-based business performance, even if the system has already been “professionally” tuned.