I had a problem with socks rubbing at the heel/back of the ankle. I got socks that have a "lip" at the back to keep that from happening (and keep socks from sinking into the shoe). I think overall most people go with some synthetic blend of socks from what I've seen and used. I like my socks thin, because feet swell while running and I don't want too much compression to happen in my shoes during a race or run (my feet/toes would start to go numb). Good topic, I'd like to hear what other ideas you get

-Ras

Katie,

If you like Thor-Los and want to try a natural sock, Thor-Los makes Experias in a wool-silk blend.  I've worn them in training runs up to 15 miles without a blister.  The Experias are not like other Thor-Los socks, with cushioning restricted to the ball and heel of the foot.  They are very comfortable.

Good luck,

Surfing Vol

Asics Nimbus.  Very light and thin and they fit snugly to keep from slipping around on your foot.  They do a great job of keeping moisture off your foot. They are also lightly padded in the balls of your feet and on the heel, and I think they have strips of padding in other strategic areas as well.  I've been wearing them for 7-8 years and really like them.  No blistering whatsoever.  YMMV.

Katie A

http://ww2.sierratradingpost.com/smartwool~b~19440/

Try here, you can sometimes find a deal on running apparel.  You can also sing up for weekly emails and get additonal %off on already discounted items.  Great company, and no, I'm not affiliated.

Phillip

NE Mississippi

ps.  I will say that usually the heavily discounted items are sometimes 2nds or blems but I've never ordered anything of this nature that has any discernable flaws.  Also there will be sometimes a very limited selection ie. colors and sizes but sometimes you luck up and find just what you are looking for.