WebLogic Portlets for Siebel Release Notes
WebLogic Portlets for Siebel Installation Guide
WebLogic Portlets for Siebel Development Guide
WebLogic Portlets for Siebel Administration Guide
WebLogic Portlets for Siebel User Guide

 WebLogic Platform 8.1 Online Documentation

WebLogic Platform 8.1 includes: WebLogic Server, WebLogic Workshop, WebLogic Portal, WebLogic Integration, WebLogic JRockit