Pattern scavenging
Some more free sock patterns I've come across recently, for your enjoyment (and to remind myself later)!
Nicole's 9 to 5 socks feature delicate pseudocabling. I especially like the way the pseudocable extends the length of the heel.
Maia's toe-up Banana Blossom socks are worked on size 3 needles, and have a large, geometric lace motif that works well with variegated yarn. I'm not sure about the recommended needle size, though. The widest part of the sock has 52 stitches, though, and I usually knit 64 stitches on size 1. We shall see - I really like this pattern!
Maia also has a great pattern for Penny Socks, which is ultra-textured thanks to lots of crossed stitches. I think these would be best worked in a semisolid color. Of course, I haven't knit a semisolid pair of socks in my life!
Rachel designed some lovely Whisper Lace Socks, which are uberfemme with a sweet picot cuff. Very nice, and again I think best knit in a solidish color.