  This study examines the correlational relationships between local journal
authorship, local and external citation counts, full-text downloads,
link-resolver clicks, and four global journal impact factor indices within an
all-disciplines journal collection of 12,200 titles and six subject subsets at
the University of Illinois at Urbana-Champaign (UIUC) Library. While earlier
investigations of the relationships between usage (downloads) and citation
metrics have been inconclusive, this study shows strong correlations in the
all-disciplines set and most subject subsets. The normalized Eigenfactor was
the only global impact factor index that correlated highly with local journal
metrics. Some of the identified disciplinary variances among the six subject
subsets may be explained by the journal publication aspirations of UIUC
researchers. The correlations between authorship and local citations in the six
specific subject subsets closely match national department or program rankings.
