There are some manufacturers who sponsor sites to help inform the audiophile. The Rane Professional Audio Reference is a very thorough listing of technical terms. ACI and Audio Review have contributed the Audio Glossary . Mission Recording has an Audio Reading Room filled with info aimed at pro audio applications, but with plenty of material for home audio as well. There is even some university work available you may like.
Player is a paper on the subject that gives concise descriptions of many parts of digital audio.
Dick Pierce has written some hilarious stories, collected as Audio Anecdote of the interval . I first ran into some of the stories when they appeared in past issues of Speaker Builder, and they're just as funny today. More speakers could use a Q switch. The general audio link directories mentioned at the beginning offer some guidance into the realm of computer audio. There is a specialized one available at UCSD .