In this demo, we present the Cupboard system for ontology publishing, sharing and reuse. This system is intended to support both ontology engineers and ontology users/practitioners. For the developers of ontologies, it offers a complete infrastructure to host their ontologies in online ontology spaces, providing mechanisms to describe, manage and effectively exploit these ontologies (through APIs). Furthermore, these ontologies are then exposed to the community, providing users with a complete, friendly environment to find, assess and reuse ontologies.