The Semantic Web envisions effortless cooperation between humans and computer ,seamless interoperability and information exchange among web applications,and rapid and accurate identification and invocation ofappropriate Web services. At the current stage of evolution in Semantic Web research, thereis a growing understanding that amajor step towrds this vision involves the implementation of principled uncertainty representation and reasoning in SW applications. This position paperintroduces initial thoughts on how the World Wide Web Consortium (W3C)Incubator XG process could be employed to move forward the concept of a Web withuncertainty .