EDA Software Vendors

Altium Designer - www.altium.com
PADS Layout - www.mentor.com/pads
Cadence Allegro - www.cadence.com
Polar Instuments - www.polarinstruments.com
SolidWorks - www.solidworks.com

Electronic Components
Digikey - www.digikey.com
Mouser - www.mouser.com
Farnell - www.farnell.com
Newark - www.newark.com
AVNET - www.avnet.com

~Find Datasheets~
www.datasheets360.com

Organizations & Publications

IPC Designer's Council - www.ipc.org
Surface Mount Technology Assoc. - www.smta.org
IEEE Organization- www.ieee.org
RF Cafe - www.rfcafe.com
PCB 007 - www.pcb007.com

High Performance PCB Materials
Rogers Corporation - www.rogerscorp.com
Dupont - www2.dupont.com/electronics
Isola - www.isola-group.com
Nelco - www.parkelectro.com
Taconic - www.4taconic.com

~Find Chips~
​www.findchips.com

File Transfer & Clouds

Drop Box - www.dropbox.com
You Send It - www.yousendit.com
Just Cloud - www.justcloud.com
Go To Meeting - www.gotomeeting.com
Join Me - www.joinme.com

Utilities & Tools
Find Chips - www.findchips.com
Data Sheet Search - www.alldatasheet.com
EE Toolbox - www.eeweb.com/toolbox
UltraCAD - www.ultracad.com/calc.htm
Saturn - www.saturnpcb.com/pcb_toolkit.htm

~Find Fabricators~
www.thepcblist.com