The generation of multimedia learning objects are expansive and time consuming. Only by reusing them in many contexts, the effort becomes worth while. Reusing requires a flexible layout. Therefore content and format should be separated. Means for searching relevant learning object are of highest importance. Metainformation has to be added to the learning object. Metadata and especially learning metadata are a powerful instrument. Complemented by an ontology and relations between the learning object, the learning material become findable. For supporting the authors, tools like a metadata editor are necessary.