The January edition of CCHS-CSIC's Ranking Web of World Repositories has been published.
Here's an excerpt:
Following several requests we now show two global Rankings. One that covers all repositories as was shown in previous editions (Top 300), and a new one that focus only on Institutional Repositories (Top 300 Institutional).
Note that these rankings only apply to repositories with an independent domain name. Seems a rather strange criterium to me…