Links and Manuals
Vintage Synth Parts
Syntaur Sam runs this site out of Texas. He has a vast range of parts covering the popular synths. He ships promptly and is my main source for parts http://www.syntaur.com
Synthparts Doug runs this site and is based in the south Bay Area. He has a small range of parts listed which includes hard to get synth chips http://www.synthparts.com
Sites with downloadable Manual Scans
Synfo.nl has a wide range of high quality manual scans
that can be download, and the list keeps growing!
http://www.synfo.nl/
Synthfool
http://www.synthfool.com/docs/