Managing emails from list-servs is an open problem that we believe may be partially resolved by the introduction of a principled, argumentation-based approach towards their representation. We propose an argumentation ontology, called “Argontonaut,” which has been developed for the domain of standards-driven W3C mailing lists. We use the extensible nature of RDF to fuse an argumentation-based approach with one grounded in an issue-management system. We motivate our ontology with reference to the domain and propose future work in this area.