The Archive of the Now – a brilliant site featuring full-length readings in mp3 format by more than 60 UK poets.
Concrete poetry – a useful page of links to specific examples of concrete poetry on the web. Maintained by Mike Garofalo.
Light & Dust Anthology of Poetry – an ongoing anthology of contemporary poetry. Includes complete out of print books, sub-sites for authors, genres, issues & exchanges. Much visual and collaborative work, much recommended.
The Naropa Audio Archives – remarkable collection of lectures and readings from the Jack Kerouac School of Disembodied Poetics at Naropa University, including Barbara Guest, Allen Ginsberg, Philip Whalen, Lyn Hejinian, Harry Smith, Anne Waldman, and many others, including Clark Coolidge’s lectures on Bop Prosody and Jazz. Hosted by The Internet Archive.
PENNsound – incredible sound archive from the University of Pennsylvania.