I'm quite fond of http://www.jimmybeanswool.com. Last year, they started a scholarship for college students who are also knitters/crocheters. And their customer service can't be beat. Likewise Webs (http://www.yarn.com); another small business with a stellar tradition of customer service.
For yarn manufacturers, you can't go wrong with http://www.greenmountainspinnery.com, which is owned by the people who work there. They do neat things like buy wool from sheep that graze on the grass under...eh, I forgot the name for those giant electric lines. And a brand-new company in Maine, http://quinceandco.com, where all the wool is from American sheep, so they can reduce their carbon footprint. And continuing the theme, both companies have fantastic customer service.
Yarn, my obsession.
For yarn manufacturers, you can't go wrong with http://www.greenmountainspinnery.com, which is owned by the people who work there. They do neat things like buy wool from sheep that graze on the grass under...eh, I forgot the name for those giant electric lines. And a brand-new company in Maine, http://quinceandco.com, where all the wool is from American sheep, so they can reduce their carbon footprint. And continuing the theme, both companies have fantastic customer service.