Here is a interesting website with a unique service called LibriVox which is a non-commercial, non-profit and ad-free project powered by volunteers from all around the globe.

Aim of LibriVox Project :
The aim of this project is to records chapters of books and release them in audio version files back onto the net for free. The recordings are hosted on a public domain which means any user can do anything with these audio files and use them in anyway they want to. These recordings are free and they can be sold, commercialised without any credit given back to LibriVox though the usage should be at par with the user’s countries copyright laws.

The current team at LibriVox claims that they are 100% non profit association, not looking for advertisers and are hosted for free with the audio files being hosted by archieve.org with the project being started in 2005 by Hugh Mcquire

Some Features :

* the domain name LibriVox.org is registered in the USA
* our website is hosted in the USA
* all our audio files are hosted in the USA
* the vast majority of our source texts come from Project Gutenberg, which does the (arduous) legal work to assure public domain status in the USA.
* it is impossible for us to verify the copyright status of every work in every country, or even many countries

LibroVox Team :
-Hugh: general project direction
-Kayray (Kara): Chief cataloger and forum boss, (Children’s Lit coord)
-Tis (Chris): technical
-Kristen: website & design
-Thistlechick (Betsie): Copyright Goddess, Catalog, (Fiction, Short Fiction coord)
-LibraryLady (Annie): Catalog, (Non-Fiction coord)
-Gesine: Forum organization, Catalog, (Non-English Books coord)
-Kri (Kristin): Catalog Apprentice
-Squiddhartha: tech
-GordMackenzie: tech, resident expert thespian
-pberinstein (Paula): forum patrol
-Peter Why: (Poetry coord)
-Vee (Chris): chief newbie welcomer

In case you would like to volunteer check out here and be a part of their team.