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A survey of the 113 academic libraries of the Association of Research Libraries (ARL) was administered to investigate whether Web usability Policies/Standards/Guidelines (PSGs) are in place, the levels of difficulty surrounding implementation, the impact of PSGs on actual usability practice, e.g., testing, resources, etc., and the relationship between ARL ranking and usability practice or PSGs. The response rate was over 74%. Results show that 25 (30%) libraries have PSGs dedicated to Web usability. Seventy-one (85%) libraries have conducted usability testing on their main Web sites, online public access catalogs (OPAC), or lower-level pages. Nevertheless, only seven libraries performed iterative testing of these platforms at pre-, during, and post-design stages. Statistical analysis indicates that having PSGs does not affect the amount of usability testing performed or the resources available for library Web usability initiatives. In addition, ARL ranking has no or little impact on PSGs, testing, or resources. [ABSTRACT FROM AUTHOR]

This study examined users’ views about the usability of digital libraries—current and perceived importance. Age, gender, prior experience with the Internet, college status, and digital library proficiency are the independent variables. Users’ current views about the usability of digital libraries and users’ perceived importance of digital library usability are treated as dependent variables. The Digital Library Usability Survey, a Likert-type instrument developed by Koohang, was used. The study's participants were 107 undergraduate students enrolled in an interdisciplinary and cross-functional degree programme at a large state university in the Midwest, USA. The collected data were analysed through statistical procedures. The overall results yielded significant differences for the variables of users’ prior experience with the Internet and users’ proficiency level with the digital library. The univariate results indicated a significant difference on the users’ perceived importance of digital library usability. However, digital library proficiency produced a significant difference on users’ current views about the digital library's usability. These results are discussed. Recommendations are made for practice and future research. [ABSTRACT FROM AUTHOR]