In the past, when I’ve taught poetry, I’ve had to do a lot of reading aloud (or ask the students to stumble through the poems for the class’ benefit) in order to convey the importance of sound in poetry.
Now the University of Pennsylvania has given us a great resource – PENNsound – a website dedicated to recordings of famous writers, especially poets.
Here you can find recordings of Amiri Baraka, Allen Ginsberg, Marjorie Perloff, Gertrude Stein, Jack Spicer, June Jordan, and many, many others.
No more reading aloud for me – I”ll let the writers speak for themselves.

Thanks to Book Ninja for putting me onto this site.