Why we need Struts:
• The Problem with JSP by Jason Hunter - Critiques model 1 development
• Understanding JavaServer Pages Model 2 architecture by Govind Seshadri - Seminal article on model 2

From Ground Zero:
• Your First Cup of Java
• Getting Started
• Learning the Language
• Optional: Essential Classes

Core Prerequesites:
• The Java Tutorial - Trail: Collections
• The Java Tutorial - Trail: JavaBeans
• The Java Tutorial - Trail: Servlets

JSP/Taglib Prerequisites:
• The J2EE Tutorial - JavaServer Pages
• The J2EE Tutorial - JavaBeans Components in JSP Pages
• The J2EE Tutorial - Custom Tags in JSP Pages

Optional:
• Optional: The Java Tutorial - Trail: Internationalization
• Optional: The Java Tutorial - Trail: Reflection
  • Using Java Reflection
• Optional: The Java Tutorial - Trail: JDBC
• Very Optional: The Java API for Xml Processing (JAXP) Tutorial
• Extra Credit: The Java Language Specification
  • Extra-Extra Credit: The Java Language Environment - A White Paper

Struts Specific:
• Struts, an open-source MVC implementation -- Malcom Davis.
• Developing Applications with Tomcat (Even if you are using something else!)
  • Welcome to the Struts Framework by Bluestone Software.
• Struts UserGuide
• Struts JavaDocs -- a good read, really!
• The Struts Catalog -- Recommended design patterns and strategies

readMe.Too
• Surveying the MVC Landscape - Contrasts other frameworks (including Struts) with Barracuda