Seattle Rhododendron Society
- Presents program information, newsletter and events.
- http://home.comcast.net/~seattlerhodo/

Société Bretonne du Rhododendron
- Bilingual in French and English, Marc Colombel's website for hybrid images. Rhododendron propagation by seed, cuttings and grafting with images, directions, and FAQs.
- http://perso.orange.fr/s.b.r./

ARS Valley Forge Chapter
- Details club events with news, photographs and membership application.
- http://kemporama.com/vfars/

Rosebay Massachusetts Chapter
- ARS Massachusetts Chapter site features growable plants in New England gardens as well as the numerous activities of the chapter.
- http://www.rosebay.org/

Connecticut Rhododendron Society
- Presents chapter history, event schedule and photographs.
- http://www.psofconn.com/ars/Opener.htm

ARS Whidbey Island Chapter
- Offers newsletter archive with event schedule and culture information.
- http://www2.whidbey.net/dapont/ARS/

Fraser South Rhododendron Society
- Features the gardens and activities of the Lower Mainland of BC chapter of the ARS.
- http://www.flounder.ca/FraserSouth/

ARS Mason-Dixon Chapter
- Provides event schedule and suggested reading list.
- http://www.mdrhododendron.org/

ARS Pilchuck Chapter
- Presents photographic garden tours, event schedule, and newsletters.
- http://www.rhododendron.info/

ARS Portland Chapter
- Features events, photographs, and garden tours.
- http://www.rhodies.org/

The Rhododendron Society of Canada, Niagara Region
- Contents include members gardens, events, plant sales, culture information and history.
- http://www.rhodoniagara.org/

The De Anza Chapter of the ARS
- California group features schedule of events, newsletter archive and membership information.
- http://www.deanza-ars.com/

Azalea Chapter of the ARS
- Georgia based group provides tips on identification and propagation, event calendar, photographs and plant resources.
- http://www.azaleachapter.com/

Rhododendron Species Foundation
- The Rhododendron Species Botanical Garden has one of the largest collections of Rhododendron species in the world.
- http://www.rhodygarden.org/

American Rhododendron Society
- Encourages interest in and disseminates knowledge about rhododendrons and azaleas through meetings, publications, scientific studies, research and culture information.
- http://www.rhododendron.org/