In August 2005, Ifremer launched its institutional repository: Archimer. Today, Archimer provides free access, on the Internet, to more than 5,000 documents, including more than 80 % of the publications co-written by Ifremer since the creation of the repository. Following a reminder of the publication harvesting and recording methods, this document assesses the use of Archimer. It analyses, amongst others, the progression of the number of interrogations and the differences observed between the uses of the different types of works (publication, thesis, internal reports...). This study also demonstrates the predominance of the search engine Google in the access to the documents and underlines its consequences in terms of Internet visibility.