Collaboration Forum (Blackboard)
Partner search facilities are offered by CORDIS:
http://partners-service.cordis.lu/
and EUREKA:http://www.eureka.be/ifs/files/ifs/jsp-bin/eureka/ifs/jsps/publicFindPartners.jsp
A specific partner search for the European Union's Information Society Technology Program is offered on http://www.ideal-ist.net.