Introduction to Java Servlets - Basic introduction to servlets. - http://javaboutique.internet.com/articles/JN/part01/
The J2EE Tutorial - A beginner's guide to developing enterprise applications on the Java 2 Platform, Enterprise Edition SDK. - http://java.sun.com/javaee/reference/tutorials/index.jsp
Getting Started with Java Servlets using Apache JServ - Article by Richard M. Yumul. An introduction to servlets and the open-source Apache jserv. - http://www.devshed.com/c/a/Java/Getting-Started-with-Java-Servlets-using-Apache-JServ/
The Complete Apache Struts Tutorial - A complete reference of Jakarta Struts shows how to develop Struts applications using Ant and deploy on the JBoss application server. Many advance topics like Tiles, Struts Validation Framework, Java Script validations are covered in this tutorial. - http://roseindia.net/struts/
Stepping Through Jakarta Struts - A quick intro to Struts (development framework for Java servlet applications), covering the necessary details to make it possible to build a simple one-page example containing an HTML form. - http://javaboutique.internet.com/tutorials/Struts/
JavaBeans and EJB Primer - General concepts surrounding the JavaBeans technology. - http://www.aurorainfo.com/wp9/index.htm
A Comprehensive Guide to Servlets and JSP 1.0 - A detailed tutorial for Java Servlets version 2.1/2.2 and JavaServer Pages (JSP) version 1.0. - http://www.apl.jhu.edu/~hall/java/Servlet-Tutorial/