Rare Quaker Parrots
- Offers blue and yellow face varieties. With pictures, and a price list.
- http://www.rarequaker.com

Quakerman
- Breeder of blue, dark eyed Cinnamon, and dark eyed yellow mutation Quakers. Some pictures, and a question and answer forum. Located in central Florida.
- http://www.quakerman.com/

Exotic Flock Aviary
- Breeder of color mutation quakers. Information about keeping and breeding quaker parrots, tutorial and discussion of genetics. Located in Beavercreek, Ohio.
- http://www.exoticflock.com/