I came across two articles this week - both evaluating/critiquing the citation counts used in Google Scholar, so thought I'd juxtapose them here. The gist is what many have been suspicious of GS - that it provides a lower quality tool that is much more accessible and easy to use than some of the more established ones.
Newswire Analysis: Google Scholar’s Ghost Authors, Lost Authors, and Other Problems. Why the popular tool can't be used to analyze the publishing performance and impact of researchers. Peter Jacso, University of Hawai'i at Manoa -- Library Journal, 9/24/2009
http://www.libraryjournal.com/article/CA6698580.html
A Citation Analysis of College & Research Libraries Comparing Yahoo, Google, Google Scholar, and ISI Web of Knowledge with Implications for Promotion and Tenure. Charles Martell.
PDF version - requires ALA membership auth.
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