Dream Organs: Organ designs and proposals by builders, performers and commentators; an account of the organ in literature; essays on music and organ design; specification of the "Liber Organum", an 8,276 stop [sic] dream organ.
Encyclopedia of Organ Stops: A comprehensive encyclopedia of organ stops. Construction details, examples, and sound files.
Flue Pipe Acoustics: The physics behind the sound of organ pipes and whistles.
Göteborg Organ Art Center: Göteborg University center for study and research into all aspects of the organ art and the organ instrument--interpretation of the music of different periods, improvisation, research into pre-industrial organbuilding, studies of sources.
Het Orgel: Dutch/English site for magazine published by the Royal Dutch Association of Organists. Recent articles, list of editors, subscription information.
JAV Recordings: CDs of world famous pipe organs. Documentary series "Great Organbuilders of America" features the work of Aeolian-Skinner.
MusicLink Pipe Organ Builders and Resources: List of links to organ builders, and organists' associations.
Ninotchka's Pipe Organ Page: Resources for organists, organ lovers and figure skaters.
OHS Catalog: Catalog sales division of the Organ Historical Society. Sells pipe organ related books, CDs, videos and sheet music. Site is fully searchable.
Organ History: The Pipe Organ, a description in two parts: "The organ and how it works" and "The History of the Organ"
OrganFocus.com: Search a database of pipe organ events around the world. Concerts, festivals, masterclasses. Original reviews and essays.
Pipe Organ Tracker Project: Large collection of website links to pipe organs sites and related keyboard musical instruments.
Pipe Organs and Music: Extensive information on pipe organs and organ music. Museum of organs. Organs available for recycling. Japanese and English language.
Pipe Organs and Music: Sound samples, photo gallery.
Pipedreams: Companion site to the popular radio program. Schedule, list of radio outlets, details of instruments featured.
PipeOrgans.Com: Commercial site of Peterson Electro-Musical Products (see entry in Organs: Builders) advocating the retention, rebuilding and reconstruction of pipe organs.
Positif Press: Publisher of books about the pipe organ, as well as music, journals and CDs.
The Enharmonic Pipe Organ: Description, photographs and sound samples of an organ with 48 pipes to the octave.
The Pipe Organ: A beginner's guide to the organ: how it works, a glossary of terms and a list of further resources.