Firelight by Sophie Jordan (with bonus material) is a discounted ebook right now. It's just $1.99!! And I believe that it will be discounted for this month only so make sure you head over to Amazon to get it for your Kindle, Barnes and Noble for your Nook, or Borders for your Kobo.
I haven't read this one yet, but it's been on my list for a while now so I will definitely be buying it for my Kindle. What a deal!