Do you want to download a classic thriller, like The Thirty-Nine steps? Or do you want to give an unknown indie author a try? I've got a website for you and it is user friendly for people out side of the United Kingdom, too.
Here is the website:
http://www.kindlefreebooks.co.uk/2011/02/welcome-to-kindle-free-books.html
And here is the Twitter link: https://twitter.com/kindlefreebook
Happy downloading!