Double-knit. Free Pattern: From my Heart by Karen S. Lauger. I like the nice, neat edges.
Great tutorial on how to knit 2 socks at the same time (one inside the other).
Nemo mittens, I so want to figure out how to knit some of these up! Found at Ravelry.com, one of the best knitting communities on the web. :)
Two at-a-time Socks on DPNs! I love this method and easier than you might think to learn how.
Scrappy Sock Ingenuity
Duck socks free knitting pattern
A technique to add in a new color without leaving holes or knots in your work. Yes please! Love that there's directions for both picking and throwing knitting styles.
WOW! Ravelry: zephrbabe's Mitered Square Sock Yarn Blanket #2
Ravelry: Pucker pattern by General Hogbuffer free some lovely sock patterns by the wonderful General on his Ravelry page
On Ravelry http://www.ravelry.com/projects/LanArta/gruenflaeche---green-space-knitted-artwork (Reminds me of drive to Pt. Rowan)