I am reasonably good at JSP,SERVLETS,EJB stuff and have been using these technologies in small to medium scale projects. I want to know about the other features of J2EE and would like to know what a large scale J2EE application encompasses. I am using Websphere,WSAD. Does petstore covers all the features of J2EE?How heplful it is? Does IBM has any other equivalent of Petstore? Pls share your views on the above. Thanks.