For EJB, first u finish out with RMI-IIOP & JNDI. Unless n untill u
know these , u can't hit EJB...most important...
u've already started with J2EE...lot's of material available on
net...as u've finised servlets n jsp's, it's good move to EJB's but prior hv a
look thro' RMI-IIOP n JNDI...apart frm this, I would like to suggest u start
with XML's if ur not yet started....
n also hv a look thro' over design patterns while studying these...hope
this will help...