Best practice networks (BPN) promote the adoption of standards and specifications for making European digital libraries more accessible and usable by combining the "consensus building and awareness raising" function of a thematic network with the large-scale implementation in real-life context of one or more concrete specifications or standards by its members. Each BPN tries out, on a sufficient mass of content, one or more of the implementation approaches discussed in the network in order to draw conclusions on their validity and if necessary to adapt them. The Commission can organise, as appropriate, "clustering meetings" for different BPNs, inviting all relevant stakeholders (including representatives ofother relevant projects under EU programmes, of relevant European and international bodies etc.) in order to achieve broad consensus and create the conditions for the widest possible uptake of the recommendations of the BPNs. The final output of the BPN should therefore reflect both the results of the large scale implementations and the results and recommendations of the clustering activities.