I am motoring along on my watermelon socks and am hoping tonight to finish the first one. I've had a few inquires on the yarn and where to get it. I am going to confess that I didn't find it all by myself, but a post through Susan B. Anderson. She is a sock making machine and has introduced me into all kinds of cool sock yarns. If she features a sock yarn on her blog, you can bet the dyer is shot into stardom.
To see Susan B. Anderson's blog -- Susan
To buy the Watermelon Yarn - visit Artistic Yarn by Abi
The yarn is a custom order and you will have to send the dyer a message through her etsy site to order. She will respond with a custom order pic and you have to pre-pay through it before she dyes it. It takes about a month to get your order, but it well worth it!