LearnOutLoud.com - LearnOutLoud.com is the web's largest resource for audio & video learning.
Islamic Audiobooks Central - Listen to audiobooks about religion, spirituality and philosophy from the Islamic perspective.
Audible - Audible is the world’s largest provider of premium audiobooks and spoken word content.
Audiobook Bay - Download unabridged audiobook for free or share your audio books, safe, fast and high quality!
LibriVox - free public domain audiobooks
Downpour.com - Listen to high quality audiobooks instantly. Download audiobooks to your iPhone, Android, or other listening device. Find titles including best-sellers and new releases. Downpour, where content reigns.