You might be interested in the results of various research efforts by OCLC.
The Online Catalogs report presents findings that indicate, among other things, that although library catalogs are often thought of as discovery tools, the catalog’s delivery-related information is just as important to end users.
http://www.oclc.org/reports/onlinecatalogs/fullreport.pdf
Some of the statistics contained within the report that I found especially interesting:
Desired Data Quality Enhancements
Which of the following enhancements would you recommend?
Base: Total library survey respondents
Merge duplicate records 52%
Add tables of contents to records 40%
Add summaries to records 28%
Fix typos 27%
Upgrade brief records 25%
Add cover art to results 25%
Make it easier to correct records 25%
Fix MARC coding errors 24%
Add summaries to results 24%
Increase accuracy of library holding information 24%
More records for online resources 22%
Add more formats 22%
More records for non-English materials 21%
More clickable links to online content 18%
Enable more libraries to make corrections 15%
Add excerpts to the records 11%
Add support for multilingual searching/record displays 10%
Greater exposure of holdings on the Web 8%
Do these statistics surprise you?
Our library is in the beta-testing phase of the social catalog software overlay AquaBrowser. This overlay will address many of the issues presented above, but not all.
Also available is a Webinar entitled “Online Catalog: designing with users in mind“