CrossRef Indicators
CROSSREF INDICATORS (March 09, 2009)
Total no. participating publishers & societies 2,729
% of non-profit publishers 64%
Total no. participating libraries 1,458
No. journals covered 19,860
No. DOIs registered to date 35,615,544
No. DOIs deposited in previous month 297,524
No. DOIs retrieved (matched references) in previous month 14,620,414
DOI resolutions (end-user clicks) in previous month n/a
The latest stats on CrossRef activity have been posted at
http://www.crossref.org/01company/crossref_indicators.html