http://www.dpi.state.wi.us/dpi/dlcl/pld/statemap.html

http://www.loc.gov/global/library/statelib.html

http://www.publiclibraries.com/state_library.htm

http://www.libraryspot.com/libraries/statelibraries.htm

http://www.familysearch.org/eng/Library/FHLC/frameset_fhlc.asp