CrossRef Indicators
Updated August 31, 2009
Total no. participating publishers & societies 2,853
% of non-profit publishers 57%
Total no. participating libraries 1,514
No. journals covered 20,691
No. DOIs registered to date 37,970,588
No. DOIs deposited in previous month 395,800
No. DOIs retrieved (matched references) in previous month 17,599,035
DOI resolutions (end-user clicks) in previous month 27,305,166