The Short Second Life of Bree Tanner is available for free from http://www.breetanner.com/ until July 5th 2010.
It follows the vampire life of Bree the newborn who surrenders to the Cullens in Eclipse.
I really enjoyed this short story. It was, as always, well written and really made me think about nature vs nurture and how the environment/peer pressure/education affects behaviour.
A great read for any Twilight fans.