Honor Roll of Hits

I've just made a, to me, fascinating discovery.
From 1945 until 1963 "Billboard Magazine" ran a chart called "The Honor Roll of Hits". This was a listing of hit songs rather than hit records, and listed the songwriter(s), the Best Selling Record, (if applicable) and finally, all available recordings of the song.
Here is a copy of "Billboard" from 1950. The chart can be found on page 18 of the magazine.
(I find all the contents worth browsing).