Using Semantic Web Ontologies for better inter-operability on social network sites

Nowadays, social web has been emerged to help people create and collect knowledge through online social network sites. Since these sites usually isolated from each other, semantic web tools are needed to inter-link social network sites. Ontologies and their classes/properties as semantic tools have been used to provide inter-operability among social network sites. Although many efforts have been gone on semantic web and use of ontologies, an exhaustive and applicable framework which aggregate ontologies is still scarce. In this study, we aim to provide a base-line for researchers creating such a framework by using FOAF, SIOC, SKOS, and DC. In addition, we present ontologies and their relationships to express semantic web in the realm of social network sites and concepts of inter-operability and user-generated content management.