The Northrhine-Westphalian Library Service Center (hbz) launched its LOD service lobid.org in August 2010 and since then has been continuously improving the underlying conversion processes, data models and software. This paper explains the background and motivation for developing lobid.org. It describes the underlying software framework Phresnel which is written in PHP and provides presentation and editing capabilities of RDF data based on the Fresnel Display Vocabulary for RDF. The paper gives an overview of the current state of Phresnel development and discusses the technical challenges encountered. Finally, possible prospects for further developing Phresnel are outlined.