Rhodes Chroma
- Resources for the vintage analog synthesizer. Includes history, documentation, instrument registry, mailing list, Polaris information and software patches.
- http://www.rhodeschroma.com/

IOTech
- Analog synthesizer repair center in Norway. Also has information about filters on various synths and modifications to the Roland MKS-30
- http://analog.no/

Jeffrey Bergman Synth Page
- Personal page featuring many samples of vintage analog synthesizers as well as reviews and other information
- http://www.i2.i-2000.com/~jeffrey/synth.htm

The Linn 9000
- Specifications, tips, tricks and howtos for this vintage drum machine and MIDI sequencer.
- http://www.totaltrash.com/linn9000/

RetroSynth
- NewsFlash - what's new about old synthesizers
- http://www.retrosynth.com/

Analogue Modular Systems, Inc.
- Analog vintage synthesizers for sale. Specializing in hard to find synths like Moogs and Buchlas.
- http://www.analogsynths.com/

Stylohone Collectors Site
- Information about this toy synthesizer
- http://www.stylophone.fsnet.co.uk/

The Audities Foundation
- A collection of instruments dedicated to the preservation of electronic musical instruments and the documentation associated with them for use in museums, recording studios, modern instrument research and new music works.
- http://www.audities.org/

Synth Museum
- The largest online museum of synthesizers and other vintage electronic instruments.
- http://www.synthmuseum.com/

Synth Services
- Manuals, repairs and restorations of vintage synthesizers.
- http://www.synthservices.com/