TechTarget
- Oracle and PL/SQL tips, tutorials, and scripts for DBAs and developers.
- http://searchoracle.techtarget.com/?ORdbred35

Hotsos
- Oracle tuning software, education, and consultancy services. Library articles require registration.
- http://hotsos.com/

SS64.com
- Command line reference for Oracle, SQL Server, Windows and bash. Includes data dictionary and database commands.
- http://www.ss64.com/

Ora-Error
- Oracle error message search facility.
- http://www.ora-error.com

Ora-Code
- Every Oracle error message, e.g. ora-01555 = snapshot too old.
- http://www.ora-code.com

Oracle Technology Network
- Documentation, tips and community help for all Oracle products.
- http://www.oracle.com/technology/index.html

Oracle Documentation Search (Tahiti)
- Search engine for the Official Oracle documentation.
- http://tahiti.oracle.com/

Oracle Documentation
- Manuals for all Oracle software (including older versions)
- http://www.oracle.com/technology/documentation/index.html

Oracle Database 9i Release 2 (9.2)
- Online Documentation Library
- http://www.oracle.com/technology/documentation/oracle9i.html

Oracle Database 10g Release 2 (10.2)
- Online Documentation Library
- http://www.oracle.com/pls/db102/portal.portal_db?selected=1

Morgan's Library
- Oracle documentation from Daniel Morgan, Puget Sound Oracle Users Group.
- http://www.psoug.org/library.html

Werner's Linux Page
- Installation guides for Oracle running under Red Hat Linux.
- http://www.puschitz.com/

Oracle's Linux Technology Center
- Technical advice and resources for Oracle support for Linux - including software downloads, sample code, installation guides, and discussion forums.
- http://www.oracle.com/technology/tech/linux/

Experts-exchange
- Community site with questions and answers to Oracle issues.
- http://www.experts-exchange.com/Database/Oracle/

Oracle on Windows NT
- Practical technical advice.
- http://www.ipass.net/davesisk/oont.htm

Maggie Shapland
- Oracle installation tips, also covers ODBC, SQL and MS Access.
- http://eis.bris.ac.uk/~ccmjs/

Monash University
- A page of basic Oracle tips aimed at IT staff.
- http://www.its.monash.edu.au/staff/systems/oracle/technical/ss_oracle.html

G & J Piper
- An FAQ covering both DBA and Financial issues.
- http://members.ozemail.com.au/~gpiper/

Oracle on Apple OS X
- How to install Oracle on OS X.
- http://homepage.mac.com/ik_zelf/oracle/Personal9.html

Jonathan Gennick
- Published and unpublished articles and some presentations by Jonathan Gennick.
- http://www.gennick.com/

Allexperts Oracle Q&A
- Volunteer experts answer all your detailed one-on-one questions about Oracle for free.
- http://experts.about.com/q/1451/

Oracle Advice
- DBA and developer Advice including OCP certification exam guide, tutorial and FAQ.
- http://www.oracleadvice.com

Apps DBA
- Oracle Applications DBA information including installation, technical architecture, and monitoring tools.
- http://www.appsdba.com/

Database Specialists
- Scripts, presentations, newsletters and a tuning tool.
- http://www.dbspecialists.com/

Material Dreams
- Tools and Scripts for the Oracle DBA and Developer.
- http://www.materialdreams.com/oracle/index.html

Arkansas University
- Help for users of SCT Banner, Oracle, and UNIX.
- http://www.uaex.edu/bknox/

Dizwell
- DBA and SQL Tips from Howard Rogers. E-Books (PDF) and an Oracle forum.
- http://www.dizwell.com/

The OakTable Network
- An informal organisation with news and articles covering the administration and development of Oracle based systems
- http://www.oaktable.net/

An Introduction to Oracle
- Introductory Tutorials including SQL, PL/SQL, the data dictionary and Java. (in PDF and HTML)
- http://w2.syronex.com/jmr/edu/db/

Oracle FAQ
- An independent source of answers covering the software giant and its products.
- http://www.orafaq.com/

Akadia AG
- Monthly tips and Oracle installation guides.
- http://www.akadia.com/cover.html

Implementing Oracle RAC using Linux NBD
- How to setup an Oracle Real Application Cluster without using a shared disk subsystem. A software solution of RAC implementation with standard Linux Network Block Devices (NBD).
- http://www.fi.muni.cz/~kripac/orac-nbd/

The Oracle Users Co-operative FAQ
- Answers to RDBMS related issues from the newsgroup comp.databases.oracle.server
- http://www.jlcomp.demon.co.uk/faq/ind_faq.html

Brian Cryer
- Collection of Oracle notes, covering error codes, troubleshooting and tuning.
- http://www.cryer.co.uk/brian/index.htm

Sameer Wadhwa
- Articles on Administration, Tuning, PL/SQL and SQL*Net.
- http://www.samoratech.com/

Osmosis Latina
- Tutorials based around the Oracle Certified Professional tests for Oracle 8i Development and Configuration.
- http://www.osmosislatina.com/oracle

Denis Klaroc
- Oracle on linux installation guides, tips
- http://staff.in2.hr/denis/oracle/

Hervé Deschamps
- Technical articles and white papers.
- http://www.iherve.com/oracle/index.shtml

Jeff Hunter
- DBA, development, tips and scripts.
- http://www.idevelopment.info/

Fors
- Bulletins and technical tips culled from the oracle.com website.
- http://www.fors.com/orasupp/

Yong Huang
- Articles about Oracle plus a Windows version of oerr.
- http://www.stormloader.com/yonghuang/computer.html

Oracle Financials
- Implementation of the 'Financials' application.
- http://www.rchath.com/

Harman Research
- Simple SQL Scripts for database administrators.
- http://www.harmanresearch.com/oracle