Davis, Philip M.Solla, Leah2005-12-222005-12-222003-09JASIST, (54):11, 2003 p.1062-1068.https://hdl.handle.net/1813/2564This study reports an analysis of American Chemical Society electronic journal downloads at Cornell University by individual IP addresses. While the majority of users (IPs) limited themselves to a small number of both journals and article downloads, a small minority of heavy users had a large effect on total journal downloads. There was a very strong relationship between the number of article downloads and the number of users, implying that a user-population can be estimated by just knowing the total use of a journal. Aggregate users (i.e. Library Proxy Server and public library computers) can be regarded as a sample of the entire user population. Analysis of article downloads by format (PDF vs HTML) suggests that individuals are using the system like a networked photocopier, for the purposes of creating print-on-demand copies of articles.130445 bytesapplication/pdfen-USe-journalsusage analysisAmerican Chemical SocietyIP addressarticle