Eclipse Update Manager for Eclipse 3.5 Galileo

http://download.oracle.com/docs/cd/E15315_01/help/oracle.eclipse.tools.common.doc/html/install.html

Oracle Enterprise Pack for Eclipse 11gR1 (11.1.1.2)
http://www.oracle.com/technology/software/products/oepe/oepe_11gR1.html

URL's for the update and discovery site for the IBM Rational ClearCase SCM Adapter
http://www3.software.ibm.com/ibmdl/pub/software/rationalsdp/clearcase/60/update/windows