Find an Ohio Library [1]
The State Library of Ohio [2]
Library of Congress [3]
The Internet for Librarians [4]
The Library Spot [5] lists a multitude of information resources.
Links:
[1] http://www.oplin.org/content/find-a-library
[2] http://www.library.ohio.gov/
[3] http://www.loc.gov/index.html
[4] http://www.itcompany.com/inforetriever/
[5] http://libraryspot.com/