CrossRef Indicators
Updated September 21, 2009
Total no. participating publishers & societies 2,871
% of non-profit publishers 57%
Total no. participating libraries 1,519
No. journals covered 20,737
No. DOIs registered to date 38,221,242
No. DOIs deposited in previous month 293,100
No. DOIs retrieved (matched references) in previous month 21,318,081
DOI resolutions (end-user clicks) in previous month 25,419,223