http://www.wsd.org.uk/ Assoc.of Guild of Weavers Spinners & Dyers
http://www.onlineguildwsd.org.uk/ Online Guild
http://www.ukhandknitting.com/ A not-for-profit organisation dedicated to promoting hand knitting and associated yarn crafts. Includes a guide to finding yarn shops.
http://kcguild.org.uk/ Knitting and Crochet Guild http://www.textileartist.org/ A place for textile and fiber artists to be inspired, learn from the best, promote their work & communicate with like-minded creatives.
http://www.campaignforwool.org/ Campaign for Wool - Live Naturally and Choose Wool
http://www.britishwool.org.uk/british-sheep-breeds.php Information abut British Sheep Breeds
https://www.ravelry.com/ A community site, an organizational tool, and a yarn & pattern database for knitters and crocheters.
http://www.craftcourses.com/ Thousands of traditional and contemporary craft courses and workshops across the UK