*[The Java Tutorial 4th Edition](http://download.oracle.com/javase/tutorial/) - Sharon Zakhour, Scott Hommel, Jacob Royal, Isaac Rabinovitch, Tom Risser, Mark Hoeber
*[Core Servlets and JavaServer Pages](http://pdf.coreservlets.com/) - Marty Hall and Larry Brown
*[Introduction to Programming Using Java](http://math.hws.edu/javanotes/) - David J. Eck
*[Introduction to Programming in Java](http://introcs.cs.princeton.edu/java/home/)- Robert Sedgewick and Kevin Wayne
####Wicket
*[Official Free Online Guide for Apache Wicket framework](http://wicket.apache.org/guide/)
