Tech Sources

Brown Dog Gadgets - Solar, Wind, and other project parts and kits

Paia - Building Block Kits & Tools

Adafruit:  Electronics Fun!  and Stuff

SeeedStudio - project parts and gadgets; "Seeed provides accessible technologies with quality, speed and supply chain knowledge."

General Electronics:

Ultra Librarian -helps determine the best source for the parts you need

Allied

Digikey

Mouser

Newark/element14