From ALA:
CHICAGO – At every turn, news reports and research indicate fairly dramatic changes in U.S. library funding, services and staffing – most occurring in the last 18 months. According to a new report prepared by the American Library Association (ALA), libraries of all types are feeling the pinch of the economic downturn while managing sky-high use.
Compiled from a broad range of available sources, The Condition of Libraries: 1999-2009 presents U.S. economic trends (2009), and summarizes trends in public, school and academic libraries across several library measures, including expenditures, staffing and services. The report also highlights trends in services provided to libraries by library cooperatives and consortia.
[More at: http://www.ala.org/ala/newspresscenter/news/pressreleases2010/january2010/outlook_ors.cfm]
Report: http://www.ala.org/ala/research/initiatives/Condition_of_Libraries_1999.20.pdf
Reports by library type: http://www.ala.org/ala/research/index.cfm