In this paper, we present a concrete case for the indexation of learning resources. In the French numerical campus (on-line university) entitled C@mpuSciences, we are now committed to delivering learning resources with their metadata files. In order to do this, we developed a tool for indexing, compatible to LOM. This tool, called Metalab, is now available. It is used to index a set of resources from “Université en Ligne”, that is to say almost 1200 student work hours corresponding to the first academic years for students in sciences.