BORES Signal Processing's DSP Homepage: BORES Signal Processing offers, besides hardware and software, a range of eBooks and free, online courses of study in digital signal processing.
Handbook for Acoustic Ecology: Technical reference guide for sound recording and related fields such as electronic music, acoustical physics, and signal processing. Includes a keyword search.
The Music Page: A site for musicians, new audio developers and hobbyist engineers. Articles and data sheets in acoustics, musicology and digital signal processing. PCM samples, a compendium of links and two multi-engine search tools.
The Scientist and Engineer's Guide to Digital Signal Processing: A textbook of DSP engineering techniques by Steven W. Smith. Entire text free on the web in PDF format.
UCSC Electronic Music Studios: Electronic Music Studios at the University of California, Santa Cruz. A collection of essays and technical articles about the art and practice of electronic music.
Worldwide Internet Music Resources: Music Technology: Collection of links to music technology websites.