American Public Media and the Poetry Foundation have teamed up to bring poetry to the radio. Here's a brief overview of the project and the programs featured.
I feel bad saying it, but I just about never listen to the radio, in part because I use public transportation so much more than a car. It never occurs to me to listen online because these days I mostly work in silence.
But poetry on the radio makes sense because it is meant to be read outloud and listened to, not simply read. Poetry is not like a closet drama. Hearing the actual poet read their work often makes more sense then simply reading it on the page (though with all the interesting ways poetry appears on the page these days, seeing it as it's being read is also illuminating.) Hearing a poet read even one of their poems makes it easier to understand their poetry in general, because you can then hear in your mind's ear their voice reading every poem.