A couple of new choices from Swedish Yarn:
Raggi is a worsted weight sock yarn, perfect for boot socks, hats, and mittens. It is 70% wool and 30% nylon, and machine washable.
Gastrike 2-ply is a sport weight wool that would be fantastic as a sweater, but also fun for stranded knitting accessories. Gastrike is available in five classic neutrals, the pricing is excellent, and the yardage generous.