From a comment that an anonymous use left: Resin with Apache on Unix. I have used Tomcat for this site for over a year, and the last two projects I've worked on used Tomcat in production. However, James Duncan Davidson indicated that Tomcat was really never meant for production, and it never hurts to broaden one's horizons. I doubt I'll use Resin on this site, but I might recommend it to my next client (if I can get up to speed fast enough).
Why don't I just use Resin's built-in HTTP Server? Because I like Apache's virtual hosting feature and it's #1 for a reason, right?
At least not on my PowerBook (1.33 GHz) - good thing another 512 is on the way!
Load Avg: 0.98, 0.98, 0.98 CPU usage: 20.9% user, 17.8% sys, 61.2% idle
SharedLibs: num = 81, resident = 18.4M code, 1.27M data, 2.78M LinkEdit
MemRegions: num = 11097, resident = 295M + 4.59M private, 116M shared
PhysMem: 63.3M wired, 291M active, 149M inactive, 504M used, 8.28M free
Dual Monitors at Work!
As you might already know, I am a committer on the Struts Menu project at SourceForge. Struts Menu is basically just a JSP Tag Library that allows you to configure a navigation system for your webapp from an XML file. Here is a demo. Here are similar menu tag libraries I found:
I also remember seeing one on weblogs.java.net, but their search feature sucks and I can't seem to find it (could be operator error).