Tonewheel General Hospital
- Provides the Hammond age determination list.
- http://www.tonewheelgeneral.com/agelist/agelist.php

NPR : A CD Tribute to the Hammond B3 Organ
- Noah Adams talks with Jerimaya Grabher, producer of the CD Organized: An All-Star Tribute to the Hammond B-3 Organ. It's a collection of tunes played on various B-3 organs around the country, by 13 musicians. [8:03 streaming audio broadcast]
- http://www.npr.org/templates/story/story.php?storyId=1069032

NPR : 'Too Damn Hot': Lonnie Smith's Hammond B3
- NPR's Tony Cox talks with organ master Dr. Lonnie Smith about art of the Hammond B3, his extensive music career and his latest CD, Too Damn Hot. [10:18 streaming audio broadcast]
- http://www.npr.org/templates/story/story.php?storyId=4468161

Jazz From Lincoln Center - Jammin on the Hammond
- On a Hammond B-3 organ Joey Defrancesco and Jimmy McGriff perform in Alice Tully Hall, fueled by the saxophones of James Carter, Houston Person, the guitar of John Abercrombie and drummer Idris Muhammad. [58:00 streaming audio broadcast]
- http://www.jazzatlincolncenter.org/jazzcast/program.asp?programNumber=147

B3 Organs with Leslie Speakers for Sale
- Many restoration photographs of the insides of Hammond B3 Tone Wheel Organs.
- http://www.b3sforsale.com/

Olaf's Hammond Page
- Photos of the exterior and interior of a Hammond organ, a 1960 Hammond C-3 (circa 1960) and a Leslie Speaker 122 taken as part of a revamping some internal circuitry.
- http://domen.uninett.no/~osc/hammond/hammond.html

Wikipedia - Hammond Organ
- Article covering the background of this instrument.
- http://en.wikipedia.org/wiki/Hammond_organ

HammondWiki
- An attempt to catalog all things related to the Hammond organ.
- http://www.dairiki.org/HammondWiki/

Nooksack River Jammin' on the Hammond Music Festival
- Live music from six Northwest bands, all featuring the mighty Hammond (B3) organ. September 11th, 2004.
- http://www.jamminonthehammond.com/

International Archives for the Jazz Organ
- Germany-based site for jazz organ players, recordings, and live performances. Links, some content in German.
- http://www.iajo.org/

TEA Labs
- Manufacturers of the B-Free, a lightweight electromechanical tonewheel generator playable from any MIDI keyboard. Models and features, sound samples.
- http://www.theboxblack.com/

Playing on electronic organ
- Playing the Hammond organ, sheet music in JPEG format, drawbar registrations, chord charts and pictures.
- http://users.telenet.be/saelsm/organ.htm

Hammond Organ Center
- Service, restoration and sales of vintage Hammond Organs and Leslie Speakers. Also feature TrekII products. Woodlyn, Pennsylvania.
- http://www.hammondorgancenter.com/

BT Productions
- Offers a range of products related to the Hammond organ, including instructional videos, Leslie speakers, and custom accessories.
- http://btproductions.com/

Murphy, Jerome Stetson
- Personal page devoted to Hammond B-3 Organ.
- http://www.hammondb3.com/

Vintage Organs Online
- Vintage Hammond organ stores in Atlanta, Georgia, and Houston, Texas. Seller of classic Hammond organs, manuals and parts.
- http://vintageorgans.net/

Hammond as in Organ
- Online book about Laurens Hammond, written in 1965 by Stuyvesant Barry.
- http://hammondorgans.net/

Hammond Organ Zone
- UK site with information about virtual museum, current products; downloads, artists' pages.
- http://www.hammond-organ.com/

A Hammond Organ Place
- Dedicated to the "lesser" Hammond tonewheel generator models H-100 and X-77.
- http://www.myplanet.net/x77dude/

Hammond Organs
- Many unique photos and facts about Hammond organs; links to many other Hammond sites.
- http://theatreorgans.com/hammond/index.html