Joy/Pagadan mentioned this on her blog, and was kind enough to send it along to me:

In case you’re interested, the anthology, Year’s Best SF 12, is out now; it has a good selection of stories, including Dawn, and Sunset, and the Colours of the Earth by Michael Flynn. A section of this story uses online posts, some of which are from Flynn’s AOL SF Author’s folder, when he asked for contributions from folder regulars for the story.

I read the story when it came out in the magazine, and it’s neat the way he integrated the posts. (One of Shadow’s contributions was included, although not under that name.)

The story has been nominated for the Hugo and the Theodore Sturgeon Memorial Award.