What makes them "Library 2.0?" Because I started them right after meeting Michael in person, listening to him kvell about the possibilities of social technologies reshaping library services. It just "felt right" to try to customize the design for him.
I don't know that my ribbing experiment is completely successful. As I said, I based it on the braille for "L2.0", using purl stitches for the braille dots. To make the pattern stand out more, I doubled the rows (so the ribbing repeat is 12 rounds high rather than 6). I don't think it will really catch on as the "official" Library 2.0 sock ribbing. Let's call it a beta.