Abstracts PhiloWeb participants’ abstracts are now available. Are Web ontologies formalizations of previously existing conceptualizations or an opportunity to contrive new concepts? Are we making our way toward an experimental metaphysics or even techno-metaphysical inventions?, Bruno Bachimont. Ontology shifted from entities to operations, Pierre Livet. What is a digital object?, Yuk Hui. Are URIs actually names?, Henry S.Thompson. Artificial Intelligence versus Collective Intelligence: The Hidden Philosophical Lineage of the Web, Harry Halpin. Webmarks: revisiting the notion of bookmarks toward contextualized reference on the web, Nicolas Delagorge. Philosophy and the Social Web, Henry Story. An ontology of the Web? From words and things to URIs and resources: the Web as a mediator of philosophical questions, Alexandre Monnin. From folksonomies to ontologies: proposal of a socio-technical solution, Freddy Limpens.