Sonify.org has a regular feature column about the craft of building web audio applications. Remixology informs web developers about the technology, developments and techniques used in the creation of web audio applications. The column aims to cover all relevant web audio technologies including Flash and streaming MP3 players.
Other useful features at Sonify.org are the forums and tutorials which provide a source of information and links to interesting articles covering a wide range of audio technologies. Recommended for podcasters or anyone seriously interested in interactive sound for the web and wireless technologies like mobile phones.