Thanks to the nice people at Tor, I have one copy of David Brin's 'Existence' to give away. Here's the blurb if you haven't already read it,
Gerald Livingston is an orbital garbage collector. For a hundred years, people have been abandoning things in space, and someone has to clean it up. But there’s something spinning a little bit higher than he expects, something that isn’t on the decades’ old orbital maps. An hour after he grabs it and brings it in, rumors fill Earth’s infomesh about an “alien artifact.”
Thrown into the maelstrom of worldwide shared experience, the Artifact is a game-changer. A message in a bottle; an alien capsule that wants to communicate. The world reacts as humans always do: with fear and hope and selfishness and love and violence. And insatiable curiosity.
Does 'Existence' sound like your kind of thing? Do you live in the US? (Yep, this one is for US residents only) Keep reading then :o)
If you answered 'yes' to both questions then you know what to do next. Just drop me an email (address at the top right hand corner of the screen) telling me who you are and what your postal address is. The subject header needs to be 'Existence'. I'll do everything else.
I'm letting this one run until the 30th of September and will aim to announce the winners as soon as possible afterwards.