1. The Use and Value of Scientific Journals: Impact on Practitioners
Carol Tenopir
University of Tennessee

4. Growth of Scholarly Journals

5. Growth of Internet Domains
Source: Internet Software Consortium Domain Survey available at <

7. Myths Scholarly journals are not read There are too many journals
Journals are only for authors
Scientists know information before it appears in a journal
Electronic journals will completely replace print

8. Average Number of Scholarly Article Readings Per Year

9. Time Spent Reading

10. Facts Behind the Myths
Growth of journal literature is correlated with the number of scientists
1 article per 10 scientists
70% of all readings are done by non-academicians

11. Growth of...
Scholarly Journals
Internet Domains

12. PubMed
A month worth of searches in PubMed equaled a year of MEDLINE searches (about 7.6 million)
Today, the number of PubMed searches ranges from 500,000 to over one million per day

13. arXiv.org
Connections to LANL’s arXiv.org reached 180,000 per day in February 2001
Each article gets an average of 300 downloads per year

14. Andrew Odlyzko’s 1995 article “Tragic Loss or Good Riddance
Andrew Odlyzko’s 1995 article “Tragic Loss or Good Riddance?” still gets an average of 175 downloads per month.

15. Average Cost Per Title: Science Journals 1996-2000
7.7%
6.9%
7.1%
11.9%
9.7%
11.3%
11.0%
11.4%
Source: Library Journal, April 15, 2000

16. Average Number of Personal Subscriptions to Scholarly Journals

17. Proportion of Readings of Scholarly Scientific Articles

18. Library Owning vs. Borrowing Article Copies
Institutional
Subscriptions
Break-Even Point
ILL/Document Delivery

19. What does this mean for libraries?
Continue to subsidize access to journals
Provide them in either print or electronic form
Think in terms of some subscriptions
Save the reader's time by providing access and links to high quality journal literature
Think in terms of economies of scale (consortia) and saving readers' time