BlogTalkRadio is an online destination for users craving a little variety for their ears. The social network provides hundreds of thousands of user-hosted radio programs. Listen to live programs from all over the globe, offering discussions on everything from blogs and comedy to romance and wine. Registered listeners can create a list of their favorite programs and receive email reminders of the scheduling. Broadcasting your own program is free and easy, and the service also allows you to field calls from your listeners.