I'll add more as time allows.
Mogami
ftp://ftp.mogami-wire.co.jp/pub/mit/catalog.pdf
Canare
http://www.canare.com/index.cfm?objecti ... BF4E0B1F7C
Gepco
http://www.gepco.com/products/pdfdownloads.htm
Belden
http://bwcecom.belden.com/MASTER%20CATA ... /INDEX.HTM
EDAC/ELCO Connectors or Edge Card Connectors
http://edac.net/
For those who want or need Electronic Components (such as Capacitors, Resistors, Transistors, etc.), here are some links:
DIGIKEY
http://www.digikey.com
MOUSER
http://www.mouser.com
NEWMARK
http://www.newmark.com
ALLIED ELECTRONICS
http://www.alliedelec.com/
RS COMPONENTS
http://www.rs-components.com/index.html
MCM ELECTRONICS
http://www.mcmelectronics.com/
Edited 1/17/11