Interportlet communityportlet-messaging.jar documentationa very good ipc sitehttps://portlet-container.dev.java.net/docs/ipc/IPC.html -------------------------java.net ko IPC good one
http://edocs.bea.com/workshop/docs81/doc/en/core/index.html------------------------for Web-logic
http://www.ibm.com/developerworks/websphere/library/techarticles/0703_wallaker/0703_wallaker.html-------------------for portlet-namespace and dojo + websphere
http://edocs.bea.com/wlp/docs92/federation/Chap-Ipc.html---------------IPC with Remote Portlets -----OracleBEA workshop
http://edocs.bea.com/wlp/docs92/portlets/ipc.html-------------------Local IPC-----------------OracleBEA workshop
http://www.liferay.com/web/guest/community/forums/-/message_boards/message/715476----------------Liferay IPC code example + forum
http://www.theserverside.com/news/thread.tss?thread_id=39097 -------------------------serverside news for IPC
http://blogs.jboss.com/blog/rrusso/ -------------------roy russo blogs for IPC for JBoss
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http://docs.jboss.org/jbportal/v2.2/reference-guide/en/html/ipc.html ------IPC chapter learning
http://www.spectrumbusinessalliance.co.uk/iPoint/ipoint?SelectedPage=69&110ArticleID=16-------------IPC articles and white papers
http://www.onjava.com/pub/a/onjava/2004/05/12/jsp2part4.html --------------------JSP 2.0 ko ramro example