Abstract. This paper assesses the scholarly impact of the CLEF evaluation campaign by performing a bibliometric analysis of the citations of the CLEF 2000–2009 proceedings publications collected through Scopus and Google Scholar. Our analysis indicates a significant impact of CLEF, particularly for its well-established Adhoc, ImageCLEF, and QA labs, and for the lab/task overview publications that attract considerable interest. Moreover, initial analysis indicates that the scholarly impact of ImageCLEF is comparable to that of TRECVid.