I found a bunch i was looknig for (see the Scifi book thread) at Kickass.so it can be a bitch to navigate but there is an audiobook section.
I am very interested in trying the subscription service at Scribd since they added audio books. I might try out the free month as there is no limit on the downloads. I have a huge backlog atm so i will mostly likely wait on the trial. Test it out and let me know !