| Gottfried Silbermann, Master Organ Builder: Photos, historical detail, locations of 31 original instruments, a visit to the Silbermann Museum, Silbermann organs on CD, contact and accommodation information. |
| Arp Schnitger, Organ Builder: English language Dutch site (English occasionally rusty); comprehensive listing of Schnitger organs, including dates, photos and specifications. |
| Chilean Pipe Organ Site: A catalog of extant organs, searchable by builder and type of location. |
| Historic Organs of East Tennessee: A couple dozen organ specifications, a few with photos. |
| Northern Ireland Pipe Organ Web Site: A central resource bringing together all aspects of the pipe organ scene within Northern Ireland. Email addresses of organists, specifications, lists of organ builders, recordings, details of recitals and lists of churches looking for organists. |
| Organs in Latvia: Includes information on Latvian organists, composers and organ builders as well as concert schedule for the famous Riga Dom organ (124/IV+P). |
| Organs of the United States and Canada Database: Intended to provide a detailed historical overview of all pipe organs built or installed in the US and Canada. Introduction, list of builders whose opus lists are included, list of builders underrepresented and contact information for the proprietor. |
| Orgelkunst: Flemish magazine on organ art in Belgium with recent articles, reviews, announcements, publications, archives, calendar of organ concerts. |
| Osiris: How to use the Osiris Archive of organ specifications. |
| Pipe Organs of Louisville, KY: Devoted to the organs in and around Louisville; many stoplists (some with photos), cited alphabetically by location. |
| Pipe Organs of Temple Square: Detailed information on the nine pipe organs at the headquarters of the Church of Jesus Christ of Latter-day Saints in Salt Lake City, Utah, USA. |
| Pipe Organs of the Merrimack Valley: These Massachusetts organs were featured at the American Guild of Organists Regions I and II Convention, 1995. |
| Seattle Area Pipe Organ Scene: Information on local concerts, builders, radio programs. |
| The Organ Historical Trust of Australia: Pipe organs in Australia, their conservation and documentation. |
| The Pipe Organs of Southern West Virginia: Photos and specifications of pipe organs in Athens and Beckley, W.V. |
| The Pipe Organs of Youghal: A historic walled seaport town found in the mid-south of Ireland. Information about churches in the Youghal area with organ histories and specifications. |
| The World's Largest Organs: International list of five manual organs and those greater than 100 ranks. |
Classical
