Bookbub is the bomb if you like ebooks as much as I do, but there's also an offshoot called Chirp Audiobooks which features steeply discounted audiobooks daily just like Bookbub does. One big difference is that most of the deals run for 30 days, so that while there's new content every day you have plenty of time to decide on purchases. You can listen to audio samples and the books play through their own software online or offline. I've purchased several using PayPal and have been very pleased. I'd buy more, but most of the time I just use my Kindle's text-to-speech feature to read to me for free!