- American Rhetoric
Audio, video and transcripts of historical speeches. Some are in the public domain; others are copyrighted.
Audiobooks, mostly classics. Some are in the public domain; others are copyrighted.
- British Library Archival Sound Recordings
Music, spoken word and nature recordings.
- Internet Archive Audio Collections
Music, audio books, news reports and spoken word recordings.
Modern and classic streaming music. Some songs may be available for download.
Audio-books - mainly classics. Original works are public domain but the audio recordings are not.
- National Public Radio (NPR)
Recorded broadcasts on news, arts and culture, music, etc.
- Project Gutenberg Audiobooks
Classics in audio-book format. The text of these works are in the public domain, although the performances of them may not be.
- Pandora One
Streaming music of all genres. The subscription option gets rid of ads, and you can buy songs or albums if you wish.