No.12
ISSN: 1559-0011
June 2009

The network effects of libraries working together

10,719 users in 46 countries

8.1 million Interlibrary Loan Fee Management (IFM) transactions processed since 1995, saving libraries an estimated half a billion dollars in administrative costs

2.4 million ILL requests deflected and automatically rerouted since 2006, saving libraries an estimated $29 million in staff time

1 million requests: November. 13, 1980
10 million requests: March 17, 1986
50 million requests: March 14, 1994
100 million requests: June 5, 2000
203 million requests: April 15, 2009

WorldCat

Format	Number of records	Percentage of total	Locations of items cataloged
Books	117,892,696	84.75%	1,314,006,988
Serials	5,540,020	3.98%	46,766,379
Visual materials	4,246,495	3.05%	29,392,880
Maps	2,175,800	1.56%	7,337,619
Mixed materials	936,004	0.67%	805,430
Sound recordings	4,384,960	3.15%	34,816,484
Scores	2,908,368	2.09%	14,148,969
Computer files	1,020,308	0.73%	3,532,117
Totals	139,104,651	100.00%	1,450,806,866
as of July 2009 (Compiled from Cataloging File Statistics: Analysis of Online Bibliographic Records)

OCLC evolves governance | By the numbers