I have made some iGoogle Gadgets with canvas view, these are analog opamp tutors. Interactive Tutorial with Simulated Meters and Potentiometers, demonstrating how Operational Amplifier functions in different configurations.
Op-Amp Simulation using Javascript
Inverting Amplifier Gadget - Get Inverting Op-Amp Tutorial
Non-Inverting Opamp Gadget - Get Non-Inverting Op-Amp Tutorial
Buffer Unity Gain Amp - Get Buffer Unity Gain Op-Amp Tutorial
Dual Differential Amp - Get Dual Differential Amp Tutorial
Differential Amplifier - Get Differential Amp Tutorial
Instrumentation Amp - Get Instrumentation Amp Tutorial
The Digital Electronic Interactive Tutors Gadgets, have a canvas view now. That means in iGoogle and Google Sites, you can set it to full size with a embedded schematic. The Normal view is also available unchanged.
- Astable 555 Timer Flasher - 555 Blinks Two LED Lamps, Vary Part Values.
- LED Running lights CD4017 - Speed up a 555 Clock driving a LED Chain.
- Digital up down BCD counter - Flip-Flop, Binary Numbers, Logic Demo.

If you wish to examine the code - Analog Tutorials Project Page
Introducing a new delabs icon - Elektrick the Power Jedi
I am also attempting a Toy Scope or a waveform display, Not done yet.