Degree in Biology from the Complutense University of Madrid; Master in Information and Documentation in Carlos III University of Madrid. He designed Webometrics Ranking of World Universities, an academic ranking universities based on their Internet presence, which is updated every six months.
In addition, he is responsible Cybermetrics laboratory of the Humanities and Social Center of the Centre for Scientific Research (CSIC). On the other hand, he is the editor of the Cybermetrics magazine since 1997 and belongs to the Advisory Board of scientific journals.
In 1996, IWETEL granted the award for Best Documentary.
Since 2009, is Doctor Honoris Causa by the University of Indonesia.