Installation ServletContainers - getrailo/railo GitHub Wiki

Jetty vs Tomcat: http://www.webtide.com/choose/jetty.jsp - Good description about how the goals of the two projects differ, and why each server is built the way it is.

Jetty 5.1/Tomcat 5.5/Resin 3.0 Speed Test: http://raibledesigns.com/rd/entry/jetty_vs_tomcat_vs_resin

Tomcat 6.0 vs Jetty 6.1 Memory Usage: http://heikok.blogspot.com/2009/03/tomcat-6018-vs-jetty-6114.html - Note the last paragraph on this one, where it talks about real-world usage.

Tomcat 5, Jetty 4, Resin 3: http://www.webperformanceinc.com/library/reports/ServletReport/ - Quite a bit old, but still an interesting read.

Resin 3, Tomcat 5: http://echofloripa.blogspot.com/2008/06/resin-vs-tomcat-benchmark.html

Tomcat 6, Tomcat 5, Jetty 6, Glassfish 3: http://www.groovygrails.de/blog/groovygrails/entry/tomcat_and_java_versions_memory

Good information for those who want to get a more general feel without running their own benchmarks on their own applications.