Two prominent science fiction authors have recently released their newest novels as free downloads to coincide with their in-store releases.
The first is Someone Comes to Town, Someone Leaves Town, by Cory Doctorow. This is an unconventional story about an entrepreneur, who happens to be the child of a mountain and a washing machine, who gets involved in a scheme to blanket Toronto with free wireless mesh network, among other things.
If you want to get hold of a signed copy, you can order it through Aust Gate. The overseas shipping is reasonably priced, but super fast. My copy was posted on Monday and arrived on Friday.
The second is Accelerando, by Charles Stross, which tells the tale of three generations of the Macx family, beginning with perptually-slashdotted venture altruist Manfred Macx, in the years leading up to and beyond a technological singularity — via Slashdot