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CrossRef Indicators

The latest stats on CrossRef activity have been posted at
http://www.crossref.org/01company/crossref_indicators.html

CROSSREF INDICATORS (May 18, 2007)

Total no. participating publishers & societies 2,365
% of non-profit publishers 66%
Total no. participating libraries 1,219
No. journals covered 17,724
No. DOIs registered to date 26,647,098
No. DOIs deposited in previous month 372,751
No. DOIs retrieved (matched references) in previous month 4,916,256
DOI resolutions (end-user clicks) in previous month 14,670,125

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