Free Two-month Audible Membership
If you want to get the best aducational audio files available, then Audible is definitely going to be a good choice. They have a large library of files ranging from songs, radio plays, and audio books. And for a special limited time offer, you can get a two month subscription to the side, plus 1 audiobook each month absolutely for free. All you need to do is to sign up for a new Audible account, After the initial two month-period, Audible will offer you a $20 coupon. Use it and you will have to option to continue or leave your account. The whole promo is valid only for US members.