I have lately come across the Twitter feed and livejournal of Sarah Rees Brennan, an Irish YA author who recently released the novel The Demon's Lexicon.
I have yet to read her book, though I want to. (Lack of financial resources, and bills to pay are resulting in few to no books being bought at the moment, however...) I can say that what I have read shows her to be funny, clever, and good at writing.
What I really want to bring to your attention, however, is the promotion she's started. Every week that the sale of her book does well, she is going to post a short story on her Livejournal.
I think this is a great idea, for it rewards her steadfast readers, as well as gives people who are just discovering her a way to glimpse her writing before paying for it. (I hate buying a promising book to be disappointed by poor writing.)
The first story is up. It deals with some of the characters and settings that are in her book, but she promises it isn't filled with spoilers.