Submission + - Web forum software
frisket writes: "A research project has asked me (as webadmin) to set up a web forum for them, with password protection, topics groupable by category, and time-limited threads. I've run phpBB before, but it's a time-sink on maintenance and very clumsy to administer (and PHP has its own problems; although I do have Tomcat and Cocoon available as well). What FOSS forum software do other /.ers prefer or recommend?"