- Audio Ideas Guide
- Hi-fi and Home Theater e-zines. Reviews, news, articles, tweaks, and other audiophile resources.
- Focused to stereo high-fidelity, including tube audio, home theater, and especially vintage 1970s gear, even vintage TV receivers. Site offers discussion forums, help, and general information for the audio enthusiast.
- Audio industry, news, reviews, ratings, references, company directory, and cross reference.
- Remote Central
- Information on mid- to high-end universal remote controls: product reviews; message forums.
- Tuner Information Center
- Focused on vintage FM stereo tuners. Reviews, explanations of how tuners work, explains about tube tuners, and notes on alleged fraudulent online auctions.
- Useful Audio Potpourri, A
- Focuses on indoor FM antenna design and a Hafler circuit for surround sound. Also, includes a directory of related links.