Some lessons learnt from projects that explore the possibilities of the Wikimedia platforms - Research indicates that the sources mostly used by non-professional information seekers to find factual information are Google and Wikipedia. Only a small percentage of information seekers still goes directly to traditional knowledge centres as libraries, archives and museum to find the information that they are looking. This situation forces knowledge centres to look for new ways to provide access to their collections and thus create value for their collection and institutional activities. A possible solution is the use of digital technology and a collaboration with third-party platforms to facilitate the access and (re)use of their information. This presentation presents some lessons learnt from projects that explore the possibilities of the Wikimedia platforms for memory institutions: sharing your authority with others, collaborating with the (Wikimedia) community and using technical platforms that are beyond your control. All projects were initiated by PACKED vzw in collaboration with Wikimedia Netherlands, Wikimedia België and a group of museums in Flanders. Speakers: Sam Donvil (PACKED vzw)