Echoes Delight: Official website for Karl Hallgrimsson's ambient work. Contains a short biography, .wav sounds, and purchasing information.
Emerald Castle Music: Ambient electronic music by William Linton. Biography, releases, reviews, and off-site MP3 downloads.
Exit: Official site for the band Exit. They offer limited-edition recordings as well as ambient-leaning books, and there are sound files on the site.