I also find the distinction between the availability of books on audible.com and audible.co.uk irritating. I soon stopped following the recommendation of US bloggers or podcasts for that reason.

One thing that I don't think helps is the fact that the audible.co.uk 'find a good book' search box goes to the site completion.amazon.co.uk to suggest the name of the book that you are searching for. So for example if I enter 'just my' it will immediately suggest the book 'just my type' in the dropdown (which was the book I was looking for) and then when I hit return will tell me that it is not available. Same goes for one of the examples given above 'anathem' shows as 'anathem neal stephenson' but, on hitting return, the book is not available.

Having said all of this I love audible.co.uk and buy 24 books in advance which works out at about Â£5 a book. It's just the search that is difficult.

What would be really nice would be for a site like goodreads to allow you to filter books by availability audible.co.uk or other sources to take some of the donkey work out of the task.

Or even better, just make all content available everywhere - they'd sell so much more.