suggestions invited

[Peter Herndon]

Reasonable enough.  As per Mike's suggestion below, building a few web
pages to document the apps is a good start.  To expand on that idea,
you could write daemons/cron jobs, perhaps in Python if Python runs on
OS/400, that monitor each app's status and log that information to the
web server.  You could then write a web application that takes the
monitoring data and formats it appropriately for human consumption.
Perhaps an RSS or Atom feed for each application's status.

I don't know anything about OS/400, but if it has a tool similar to
syslog, you could configure the application hosts to report their
status to a remote syslogd, perhaps on your web server, and parse the
log file for the status data.