The team behind Scribd want to make their service as accessible as possible. To do this, they've seen it necessary to expand beyond the Kindle - to move past the Amazon environment. To do this, they've decided, they'll need to open their platform to Audiobooks. According to Scribd, this $1 billion a year market is just ripe for expansion - 30,000 audiobooks are on the way to their service right this minute. This will be the single largest unlimited-access offering of e-books and audiobooks available in the world today.