Diabelli Variations
Entry from Wikipedia with links to related material and biographical information.
Diabelli Variations: 34 Pianists
Background notes on the piece in a performance guide from Northport, New York. Includes biographies of performers.
Diabelli Variations:From Parody to Transfiguration
Sleeve notes from Hyperion Records by William Kinderman show the wide-ranging influence the composer and the theme had upon each other.
The Diabelli Variations: Ludwig van Beethoven
Illustrated examination of the works with commentary on specific sections by Michelle Oliver.