I'm seriously considering writing a dead tree Struts 2 cookbook. What types of recipes would you like to see? Beyond what is already in my cookbook I've been thinking of the following:

• Integration with other tools:
  • Spring & Spring MVC
  • Hibernate, iBatis, JPA
  • JSF (integration and migration)
  • Guice
  • SiteMesh
  • Others?
• Architecture
  • Using "modules" to break up a large project
  • Using layers
  • Using Spring as architectural glue
• Working with OGNL
• Working with the S2 UI Tags
  • Creating a new tag integrated with OGNL and the ValueStack
  • Using S2 UI components
  • Styling S2 UI components
  • A better version of the multicolumn layout theme
  • Creating better forms and handling errors and their presentation
  • Presenting tabular data for presentation and editing
• Struts 1 Integration & Migration
  • Running Struts 1 and Struts 2 side by side
  • Creating a Maven build environment for Struts 1 & 2, using XDoclet
  • Migrating Struts 1 Actions to Struts 2
• i18n
• Interceptors
  • Creating an interceptor
  • Packaging an interceptor as a Struts 2 Plugin
  • Solving cross cutting concerns with Interceptors
• Extending Struts 2
  • Creating a packaging a S2 plugin with Maven
  • Adding scripting support to S2 (ala Groovy Works)
  • Automatic scaffolding using a plugin, like Rails and Grails
• Using Struts 2 with various build environments
  • Maven
  • Ant
  • Various IDEs
• Validation
  • Using XML based validation
  • Using the Validateable interface
  • Handling complex semantic validation
  • Creating pluggable validators with Spring
• Security, Login and User Management
  • Integrating with JAAS
  • Rolling your own simple authentication system
  • Creating a pluggable authentication system with IoC
  • Securing an action based on user role
  • Securing part of a page with JSP tags
  • Integrate with Acegi
• View Layer Integration
  • What's a result?
  • Using results to generate different types of output
  • Integrating different result types, such as
    • Jasper Reports
    • Velocity
    • FreeMarker
    • Groovy Server Pages
    • Tiles
  • Creating a custom result types
  • Post and redirect result type
• Struts 2 and Ajax
  • Help me here. I'm not an Ajax guy yet.

Please reply with what you'd like to see. All ideas are welcome.