Google ( [standalone jndi server|http://www.google.com/search?q=standalone+jndi+server] ) or Google ( [jndi standalone java application|http://www.google.com/search?q=jndi+standalone+java+application] )
It seems that Tomcat has a pretty nice documentation, little outdated but nice.
One little off topic question. I am working with Tomcat but there is GlassFish, JBoss too.
I am pretty new to web applications and frameworks: learned a bit of Struts, Java Server Faces, AJAX, Wicket, Spring not yet :))
The question is: what container is "the best". Easy to configure with all these technologies since I worked only with Tomcat.