http://newalbion.com/artists/subotnickm/
http://www/hmw.or.jp/~ tomita/
http://www.apocalypse.org/pub/u/wendy/
http://gallery.uunet.be/wimwim/
http://www.wwa.com/~johnp/egres.htm
http://www.tradesafe.com/tradesafe/bargains.html
http://www.vuse.vanderbilt.edu/~jbbarile/theremin.html
http://www.sonicstate.com/synth/sergemodular.html
http://www.sonicstate.com/synth/EMSSYNTHI.html
http://www.synthcom.com/usedlist.html
http://www.musicians-net.co.uk/
http://alt-www.uia.ac.be/u/esger/emusic/other.html
http://www.cs.umu.se/studenter/KRAFTWERK/
http://metro.net/blacet/music.html
http://www.tc.umn.edu/nlhome/m082/satti002/ChrisSattinger.html
http://www.sara.nl/Rick.Jansen/Emusic/Synth-diy/synth-diy.html
http://www.hyperreal.org/music/machines/Analogue Heaven/
http://www.infusionsystems.com