In this paper we present an extension of XML-based tuplespaces for the
Semantic Web. This proposal draws on the ideas of tuplespace computing as a
paradigm closer to the basic principles of the Web. We describe the evolution
of tuplespace computing, outline why tuplespaces are a suitable middleware for
the Semantic Web and suggest how XMLSpaces can be extended to support Semantic
Web technologies, like RDF(S) and OWL.