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Thursday, September 29, 2005

More on journal linkrot

Michael Bugeja and Daniela V. Dimitrova, The Half-Life Phenomenon: Eroding Citations in Journals, The Serials Librarian, 49, 3 (2005). Only this abstract is free online:
The phenomenon of lapsed URLs, otherwise known as “linkrot,” has been acknowledged since the 1990s; however, a relative few studies addressed the impact of linkrot with respect to the footnote, the foundation upon which the scientific documentation is based. In this summary of research to date, the authors focus on three top journals in journalism and communication-Human Communication Research, Journal of Communication, and Journalism & Mass Communication Quarterly-testing some 416 online citations over four years. Of the total 416 citations, only 61% were still accessible. Additionally, 19% of the online footnotes contained an error in the URL, and 63% did not provide an access date in the published citation. Of those links that were still active, only 58% matched the cited content. The authors also introduce their concept of “the half-life of Internet footnotes,” or the time is takes for one-half of online citations in a journal to go dead, and make recommendations to extend the online life of Internet-based footnotes.