I am pulling together a list of rollographies, both printed ones
and online ones.  Here are the printed ones I know of:

Aeolian Company.  Catalogue of Aeolian music arranged for 46-note
  instruments.  [19--];

Aeolian Company.  The Aeolian pipe-organ and its music.  [1915];

American Piano Co.  A catalogue of music for the Ampico.  1923;

Ampico Reproducing Piano.  Catalog of record music rolls for
  the Ampico, July, 1920.  [1973];

Ampico Reproducing Piano.  Catalogue of artists record music rolls
  for the Ampico, Artigraphic, and Stoddard-Ampico player pianos,
  July 16, 1916.  1973;

Ampico Reproducing Piano.  Handy volume catalogue of Ampico recordings,
  1929-31-33-37.   [1973];

Billings, Ginny and Bob.  The Billings rollography : player piano music
  from 1917 to 1934.  1990-95;

International Piano Archives at Maryland.  Catalog of the reproducing
  piano roll collection.  1983;

Kaczmarek, Regina A.  A catalog of selected piano rolls from the
  Library of Congress collection.  1960;

Kansas.  School For The Blind, Kansas City.  Catalogue of music in the
  Braille and point notation.  1928;

Montgomery, Mike.  Columbia, Capitol, Supertone, and Challenge
  word roll catalog.  [1984?];

Obenchain, Elaine.  The complete catalog of Ampico Reproducing Piano
  rolls.  1977;

Sitsky, Larry.  The Classical reproducing piano roll.  1990;

Smith, Charles Davis.  Duo-Art piano music.  1987;

Smith, Charles Davis.  The Welte-Mignon : its music and musicians.
1994;

Welte-Mignon Corporation.  Library of Welte-Mignon player music.  1917.


If anybody sees an important print rollography missing from the list,
please let me know.

Among online rollographies there are Jack Breen's Mills Violano,
Rick Crandall's Encore Banjo, Rick Crandall's Hupfeld, Peter Muir's
Long Lost blues, my own Wurlitzer 125, 150 ,165 and 180 band organ
rollographies, and a treasure trove of other rollographies and
rollography links (mostly the work of Terry Hathaway) on the Mechanical
Music Press website.

Terry Smythe offers an archive of player piano MIDI files here:
  http://members.shaw.ca/smythe/archive.htm 

Warren Trachtman does the same thing here:
  http://www.trachtman.org/rollscans/RollListing.php 
  http://www.iammp.org/rolldatabase.php 

Fred Dahlinger and Dave Haibach are working on a rollography of rolls
perforated at eight holes-to-the-inch.  Don Teach and Art Reblitz are
compiling an O-roll rollography.  A much desired rollography of APP
rolls has been occupying much of Terry Hathaway's life of late.

In addition Terry Hathaway has put together a fantastic M-disc
containing all kinds of roll data, including complete copies of all
known Wurlitzer monthly roll bulletins from 1913 to 1925, data on
Artizan, Pianino, APP, Mandolin Quartette, PianOrchestra, and Caliola.

I welcome news of any online rollographies, existing or in the works,
that I have missed.

Matthew Caulfield
Irondequoit, New York