OntologyOnline.org is an experiment in Ontology visualisation and web-integration. The ontologies are saved in a MySQL relational database format for quick online access. The resulting web application creates an ontology-mashup, containing ajax widgets and RDFa markup. (11GX)
Ontology Online is the work of DavidDecraene, and is being used as a semantic experimentation platform, reconciling web 2.0 and web 3.0 technology. (16O7)