Components

Passives

Resistors, Capacitors, Inductors, ...

Integrated Circuits

Op Amps, Microcontrollers, Voltage Regulators, Digitally Programmable Potentiometers, ...

Transistors, Diodes, etc.

Diodes, Transistors are described here.

Optoelectronics

LEDs, photodiodes, optoisolators, LCDs, ...

Oscillator

Crystals, Ceramic Resonators, oscillators, ...

Sensors

Accelerometers, Gyroscopes, Temperature Sensors, Pressure Sensors, ...

Switches and Relays

Turn things on and off

Modules

GPS, Mobile Phone, RF Transceiver, Bluetooth Modules, ...

Component Manufacturers

Links to homepages, phone numbers, contact info, ...

PCB Manufacturers

contact info, PCB trace width/spacing capability, ...

Suppliers

Good places to buy, numbers to call, people to talk to, ...

Bargains

Get it cheap ( but it it cheap? ).

Free Samples

Free is nice.

Free From Salvage

Dig in.

Salvage Ideas

Unusual ideas for the fruits of your labor.