Data Sources

American Booksellers Association

(Copyright 2007)

Audit Bureau of Circulations

(2007 Audit Bureau of Circulations)

MediaFinder.Com of Oxbridge Communications Inc.

(The site searches the National Directory of Magazines [7] and the Standard Periodical Directory [2007].)

National Center for Education Statistics

(2005 Public Libraries Survey and Library Statistics Program, Released 2007) (2004-2005 Public School District)

Scarborough Research USA+2007 Release

U.S. Census Bureau

United States Department of Commerce (United States Census 2006)

Yellow Pages, Inc.

(Copyright 2007 Yellow Pages, Inc.)