AlReader - Alreader.com - new perspective on reading e-books.

Islamic Audiobooks Central - Listen to audiobooks about religion, spirituality and philosophy from the Islamic perspective.

iReader - iReader is one of the most accomplished ways to read the books right from your smartphones.

Audible - Audible is the world’s largest provider of premium audiobooks and spoken word content.

Cool Reader - Fast and small cross-platform eBook reader for desktops and handheld devices

LibriVox - free public domain audiobooks