Siebel Monitoring Tools provides monitoring of Siebel servers through Nagios plugins and SNMP. It can monitor status of components, resource consumption (by component), task information, and anything else which might be interesting.
Siebel GNU Tools provides several small programs (most of them scripts) created to deal with different categories of problems when working with Siebel applications.
A utility that converts an ICC profile from v2 to v4.
A Web-based calendar written in PHP/SQL.