Since several years it has been observed that information offered by different know-ledge producing institutions on the internet is more and more interlinked. This tendency will increase, because the fragmented information offers on the internet make the retrieval of information difficult or even impossible. At the same time the quantity of information offered on the internet grows exponentially in Europe – and elsewhere - due to many digitization projects. Inasfar as funding institutions base the acceptance of projects on the observation of certain documentation standards the knowledge created will be retrievable and will remain so for a long time. Otherwise the retrieval of information will become a matter of chance due to the limits of fragmented, knowledge producing social groups.
The paper describes the services of MusIS, the South-Western German Museum Network, for the curation of digital heritage. These services range from an object documentation software and the application of controlled vocabulary to a content management system for presentations on the Web and a joint portal for libraries, archives, and museums (the BAM Portal). The BAM Portal offers the possibility to connect selected content to the German Wikipedia and to improve the access to this content via this online encyclopaedia.