In his debut Publisher's Weekly column, sf writer Cory Doctorow talks about his latest digital publishing experiment: A short story collection with a variety of formats at differing price points, from free all the way up to a version with your own specially commissioned short story. He'll be publishing the results (compared to an earlier collection) as a public service set of data on new publishing models.

Hat tip to also-awesome sff writer Nalo Hopkinson (@nalohopkinson) for spotting this.

Full disclosure: I know Cory (@doctorow), and I pay for his books. The FTC can bite me.