http://www.webometrics.info/index.html

Since 2004, the Ranking Web is published twice a year (January and July), covering more than 20,000 Higher Education Institutions worldwide. We intend to motivate both institutions and scholars to have a web presence that reflect accurately their activities. If the web performance of an institution is below the expected position according to their academic excellence, university authorities should reconsider their web policy, promoting substantial increases of the volume and quality of their electronic publications.