I've seen recently added FAQs lists, and for example
Struts is a "new entry" because of course is a very
interresting tool that is keeping attention from many
people around. I believe also JBoss, as the "only"
opensource J2EE application server strict to specs
can deserve the same attention, even if there's
already a place where to post questions about it
(AppServer FAQ).
There isn't a plenty of information
and documentation around, about this argument, maybe
jGuru can help evolution and promote this tool let people
to know that EJB offers also a free option.