Dynamic value chain activities and complex decisions require the transparent flow of information and seamless knowledge exchange among multiple value chain participants. Advances in semantic web-based technologies offer the means to integrate heterogeneous systems across organizations in a meaningful way by incorporating Ontology, a common, standard and shareable vocabulary used to represent the meaning of system entities; Knowledge Representation, with structured collections of information and sets of inference rules that can be used to conduct automated reasoning; and Intelligent Agents that collect content from diverse sources and exchange semantically enriched information. This research applies fundamental work done in semantic web technologies including ontologies, knowledge representation, multi-agent systems and the webservices architecture to develop a system architecture that enables semantically enriched collaborative eBusiness process. We describe the feasibility of the knowledge services architecture to enable the transparent exchange of information and knowledge among agents that manage eBusiness processes to enhance online processes in an eMarketplace.