« …The criteria for inclusion are very simple: The repositories should have their own web domain or subdomain and include at least peer-reviewed papers to be considered (services that contain only archives, databanks or learning objects are not ranked).
Although there is a paper describing the Ranking, Aguillo, I.F., Ortega, J.L., Fernández, M., Utrilla, A.M. (2010). Indicators for a webometric Ranking of Open Access Repositories. Scientometrics, 82 (3): 477-486. (You can get the author’s edition in Open Access), there are some important changes in the methodology. The indicators and weighting are described below:
– Size (…)
– Visibility (…)
– Altmetrics. The following sources of mentions are now included in the Visibility indicator: Academia, Facebook, LinkedIn, Mendeley, ResearchGate, Slideshare, Twitter, Wikipedia (all editions), Wikipedia (English edition) & YouTube. Weight: 25% (combined with Visibility in the tables)
– Rich files (…)
– Scholar (…) »