The semantic web has been developing for the last 10 years and with its Resource Description Framework (RDF) and vocabularies it seems to be usable today. Unfortunately RDF is a quite complex technique that comes with loads of standards and high IT know-how and is at least not designed for simple use in libraries or for normal web site operators. In contrast to this large-scale and complex solution the great and leading companies for search engine sites like Google, Microsoft, Yahoo und Yandex formed an alliance and defined ‘structured data’ to describe semantic infomation for web pages. Basing on the structured data definition ‘Library’ (), the Library of the Medical Faculty Mannheim defines some of its basic data as machine-readable structured data on its web site. Furthermore, the website’s starting page contains semantic metadata in Open Graph format (that Facebook crawls and analyses) and Dublin Core format
