If you like American radio stations and jingles here is a site that may interest you –
RadioTapes.com featuring nearly 2,000 recordings of Minneapolis/St. Paul radio stations dating back to 1924 with many from the 1950s to 1980s including WCCO, KSTP, WDGY, KDWB, KQRS and others is well worth a visit.
They have items covering new stories like the death of John Lennon, Lady Diana. Jingles and air checks – plus pdf files that may interest.