OneClickdigital (formerly NetLibrary/Recorded Books) – Thousands of always available audio books, primarily adult titles. Currently available on Macs, PCs, and via an iOS (Apple) or Android app.

OverDrive – Find adult, teen, and children’s fiction, nonfiction, popular authors, current and backlist titles.

Internet Archive: Audio Books and Poetry – A collection of free audio book and poetry recordings. (Non-library site)

LibriVox – Public domain audio books recorded by volunteers, some in non-English languages. (Non-library site)

Open Culture: Free Audio Books – Public domain audio books through iTunes, Audible, and more.(Non-library site)

Help!!

(Non-library site)