| Cedarwool Farm | http://www.angelfire.com/md3/cedarwool |
| Ryeland Flock Book Society | http://www.ryelandfbs.com/ |
|
Natural Yarns |
http://www.naturalyarns.co.uk/ |
| Okalahoma State University Sheep Breeds | http://www.ansi.okstate.edu/breeds/sheep |
| York & District Guild of Weavers, Spinners and Dyers | http://www.yorks-guild-wsd.org.uk/ |
| The Spinners Notebook | http://www.spinnersnotebook.com/ |
| North Yorkshire Smallholder Society | http://www.smallholder.org.uk/ |
| The British Coloured Sheep Breeders Association | http://digitalburn/clients/bcsba/mainpages/home.html |
| Broomwell Ryelands | http://www.broomwellryelands.sphosting.com/ |