CrossRef Indicators
Updated June 15, 2009
Total no. participating publishers & societies 2,806
% of non-profit publishers 57%
Total no. participating libraries 1,491
No. journals covered 20,279
No. DOIs registered to date 37,071,229
No. DOIs deposited in previous month 380,419
No. DOIs retrieved (matched references) in previous month 13,082,811
DOI resolutions (end-user clicks) in previous month 26,782,044