The Hardyman, a short story (6,500 words) by Susannah Breslin, published under the CC Attribution license. Story inspired by Hardiman, the first attempt to build a powered exoskeleton in 1965, licensing inspired by Cory Doctorow’s recent HOWTO use CC licenses. Breslin writes:

It’s the longest story I ever wrote. I thought about further restricting its use, but then I thought […] Robots want to be free.

Via Boing Boing.