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Explore the evolution of electronic journals, the differences among them, and how scientists access and use them. Discover the preferences, habits, and trends in electronic journal reading.
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Electronic Journal Use: A Glimpse Into the Future With Data From the Past and Present Carol Tenopir University of Tennessee ctenopir@utk.edu Donald W. King University of Pittsburgh dwking@pitt.edu C. Tenopir
Introduction Total number of periodicals ~250,000 Number of refereed scholarly periodicals ~15,000 Number of online refereed scholarly periodicals ~12,000 C. Tenopir
Not All “E-Journals” are the Same • Full Journal Titles • Database of Journal Articles • Separates in E-print Servers • Authors’ Website C. Tenopir
Other Differences • New design or replica of print • Added data and features • Browsing or searching • Backfiles C. Tenopir
Not All Readers Are the Same • Variations by workfield • Variations by workplace • Variations by purpose C. Tenopir
Groups Compared • Astronomers in 2001/2002 (heavy users of e-journals) • Other scientists with recent but relatively infrequent use of e-journals (2000-2002) • Scientists before extensive availability of e-journals (pre 1995) C. Tenopir
Data From: • 15,000+ scientists and social sciences • Many workfields • University and non-university settings • 1000+ members of AAS C. Tenopir
Time Spent and Number of Articles Read C. Tenopir
Stages in Electronic Journal Reading Early (Pre-Web) (2000 ) Evolving Print emphasis Mix of print and electronic ~35% total readings from electronic (2001 ) Advanced Electronic emphasis Mix of print and electronic ~80% total readings from electronic C. Tenopir
Source of Articles Read By Electronic Journals Experience Early Evolving Advanced Personal subscription 46% 37% 15.2% Library Subscription 41% 48% 49% Separates 13% 15% 35.8% C. Tenopir
Sources of Readings % and amount of readings from separate copies use of personal subscriptions Scientists appear to be reading from more journals—at least one article per year from approximately 23 journals, up from 13 in the late 1970s and 18 in the mid-1990s. C. Tenopir
How Scientists Learned About Articles Early Evolving Advanced Browsing 58% 45% 21% Online Search 9% 14% 39% Colleagues 16% 22% 21% Citations 6% 13% 16% C. Tenopir
How Scientists Learned About Articles Browsing Complete Journals Online Searching by Topic Electronic versions provide additional functions (searching, citation linking) which replace some browsing C. Tenopir
Browsing Searching • Core titles • Current issues • Background • Current awareness • New topics • Old articles • Support primary research • Support writing C. Tenopir
Age of Reading from Digital Media 1 years 2-5 years 6-15 years >15 years C. Tenopir
CONCLUSIONS • More reading in all workfields in not much more time • Users prefer convenience and familiarity • Browsing journal titles for core sources (print or electronic) • Searching separates for additional sources C. Tenopir
CONCLUSIONS • Complete journals and databases of separates will coexist • Differences in workfields (Build it right and they will come) C. Tenopir