Crafting
Garthenor Organic Pure Wool
Chris and Sally King sell wool from rare and traditional breeds of British sheep, which is certified as organic by the Soil Association all the way from the sheep's back to the final wash after spinning at the mill. They use no dyes at all but have a surprising range of shades and textures from different types of sheep. Chris and Sally are wonderfully enthusiastic and knowledgeable about their wools.
Gossypium
Gossypium was one of the first organic cotton clothing companies and now sells a small selection of fabrics too. The fabrics are fairly traded as well as organic, good quality, and reasonably priced. They also have some sewing kits (similar to Clothkits) in their organic cotton. You can read Gossypium's comprehensive ethical and environmental policy on their website.
Schoolhouse Press
The late and exceedingly great Elizabeth Zimmermann started this company, which publishes her knitter-empowering books and patterns along with all sorts of other interesting stuff. If you find yourself in knitting difficulties, you can email a cry for help and you're sure to get a kind and wise response! My recent plea for armhole assistance was answered personally by EZ's daughter, the very elegant Meg Swansen.
Food
Riverford Organic Vegetables
I think Riverford's better than other box schemes I've tried - on quality, value for money, and environmental and social responsibility. As well as the great food, I enjoy founder Guy Watson's rants in the little newsletter that comes in the box each week; it's nice to agree with the man who grows your cabbage.
Infinity Foods
Pretty much everything I eat that I can't get from Riverford, I buy in bulk directly from Infinity.
The Soil Association
If you want to know more about organic farming, the Soil Association's website is one place to start. You can find details of what 'organic' means and lots of information about why the SA thinks organic principles are important for people, other animals, and the planet. You'll also find an explanation of their concerns about GM crops.