The Eye - The Eye is a non-profit website dedicated towards content archival and long-term preservation.
Open Culture - Discover thousands of free online courses, audio books, movies, textbooks, eBooks, language lessons, and more.
Storynory - Storynory is another application that brings you wonderful audio stories weekly with beguiling voice of Natasha Gostwick.
LibriVox - free public domain audiobooks
Project Gutenberg - Project Gutenberg offers free ebooks to download.
Audible - Audible is the world’s largest provider of premium audiobooks and spoken word content.