I'm a little late with the promised yarn shout-out but here it is. A yarn that I am currently using for socks is MySmallWonders superwash sock yarn, purchased from Etsy. The yarn has a nice hand, and the dyeing is, in my opinion, excellent. I have tested the yarn in water, and have not had any bleeding problems.
This yarn is thin, ala Lorna's Laces. I'm using size 1 dpns for my socks, and am loving the way it knits up. The yarn is a decent 383 yards, in the colorway Burgundy Bliss. I wish that there had been more yardage in the skein. Another plus--there were zero knots in the skein.
I really like to support indie dyers, and Etsy is the perfect place to find a lot of them. I'll include pics of the finished socks once they are done. The finished project will be on my Ravelry page too--I'm Sturgillsusan on there.