American Hit Network's (AHN LLC.) mission is to provide syndicated content about the past 50+ years of American popular music, distributed to broadcast, interactive and publishing concerns.
The concept of American Hit Network was based upon author Thomas Ryan's book, "American Hit Radio: A History of Popular Singles From 1955 to the Present", published in 1995. An update of this book's unpublished content, with added chapters covering 1996 through 2006, appears on this site, complimented with new material added weekly. Source