A new architecture for the World Wide Web is emerging, known as the 
Semantic Web. In broad terms, it encompasses efforts to populate the 
Web with content which has formal semantics; this will enable automated
agents to reason about Web content, and produce an intelligent response
to unforeseen situations. We believe that to build the Semantic Web,
the sharing of ontological information is required. This allows agents
to reach partial shared understanding and thus interoperate. We are
proposing frame-based representation as a suitable paradigm for
building ontologies as well as the World Wide Web Consortium's
RDF-formalism (and its extensions, such as the DARPA Agent Markup
Language) as a manifestation of frame-based representation for the Web.
The paper will discuss required and desirable features of ontological
languages, giving examples of the possible usage of frame-based
representation and ontologies on the Semantic Web.