Here are the papers I've written so far...

• Using LDAP and Directory Servers in Oracle Development: Part I
• Oracle Collections and Records (Slides) Given at RMOUG TD 2002
• Oracle Collections and Records (White Paper)
• PL/SQL Application Frameworks for Custom Systems (Slides) Given at IOUG Collaborate 2008, RMOUG TD 2008, UTOUG TD 2008
• PL/SQL Application Frameworks for Custom Systems (White Paper)
• Hidden Gems of Oracle Text (Slides)
• Hidden Gems of Oracle Text (White Paper)
• PL/SQL Development Tool Comparison Matrix (Excel original, I still recommend PL/SQL Developer)
• Lazy Application Architecture (Slides) Given at IOUG Collaborate 2010, UTOUG TD 2010
• Lazy Application Architecture (White Paper)
• Dynamic Debugging: Pain-free Troubleshooting of Production PL/SQL (Slides) Given at UTOUG Dev Sig, Spring 2010
• Oracle Streams AQ: Increase your AQ IQ (Slides) Given at RMOUG TD and UTOUG TD 2011
• Oracle Streams AQ: Increase your AQ IQ (White Paper) Given at RMOUG TD and UTOUG TD 2011

And some online reviews of PL/SQL development tools I wrote...

• Allround Automation's PL/SQL Developer
• Embarcadero's RapidSQL
• KeepTool's Hora

And the open source PL/SQL application framework (see SourceForge too)...

• PL/SQL Starter Framework 2.0