MicroPower (PIC) devices

I was going through a thread for Writing code for battery operated projects, in which Melanie quoted about micropower devices.

I would like to know Microchip's micropower PICs. Is a comaprison type of sheet(information) available. I tried Microchip's site for this purpose but was not able to get the info.

1. Goto www.microchip.com homepage

2. From the PRODUCTS column select PIC Microcontrollers

3. In the centre column look down the list until you find the SPECIAL FEATURES subheading

4. Click on nanoWatt Technology

5. Enjoy

Thank you Melanie for the help.