Hi, I succeeded merging all logs there is in tomcat, webapps, and internal libraries by doing 3 things: -1 placing these JARs in commons/lib: logback-classic-0.9.16.jar logback-core-0.9.16.jar slf4j-api-1.5.8.jar log4j-over-slf4j-1.5.8.jar jul-to-slf4j-1.5.8.jar jcl-over-slf4j-1.5.8.jar 2- adding my logback.xml file to commons/classes 3- removing log4j and commons-logging JARs from my webapps. What I need to do now is have separate logging per webapp. It seems to me that this is where problems can start, according to this post: http://osdir.com/ml/java.logback.user/2008-07/msg00024.html Is this still the best way to do that? If so, is there any more details on how to write the "logback context loader" as suggested in there? BTW, it is hard for me to know if this is best targetted at SLF4J or LogBack lists... -- Mel T.