Happy to share the website! Feather and Fan Scarf
It's a little further than half-way down the page, and even though a few of her patterns are for sale, this one's free. (The pattern is also on Ravelry.) She made a scarf, but for a shawl, I cast on 76 stitches and made it longer.
Antares, the yarn I used was JoAnn's Sensations "Breeze", weight category 3. It only took one skein (595 yds).