I bought a Kill-A-Watt power meter a couple of years ago to figure out how much power various computers, peripherals and gadgets I have use. Now, adafruit industries announced…
Tweet-a-Watt kits now available…
This Open Source hardware project tells you how to modify your own Kill-A-Watt to tweet power usage data. You can also buy prebuilt kits [...]

Saw this Microsoft TechNet video mentioned on the Green Data Center Blog…
How much power does your PC consume? 
It is a 20 minute long video. So, get comfortable for a sit-back experience (vs. lean forward).

From MacNN…
Hitachi brings out green Deskstar drives
Power use of these drives can be as much as 59% less than current non-green (gunky brown? drives.

Extreme Tech has a review of the Fit PC that only needs 5 Watts (no fan).
Fit PC—A Tiny Linux PC that Fits Anywhere
What surprised me was not the electricity consumption though. I was surprised by the price: $285. This includes 256MB RAM (no expansion available) and a 40GB hard drive. Gentoo Linux is preloaded. The [...]

Inhabitat has a great little report (with photos) of a…
Wing Personal Portable Windmill
I doubt if many people would carry it around on their backs for daily activities. But, it looks handy for camping or during extended blackouts.

Computerworld reports on Solis Energy whose Solar Power Plant product is being touted as something to power WiFi access points in remote areas.

From LinuxDevices.com…
Tiny PC sips power, runs Linux
Pretty amazing device. Check out the photos provided with the article linked above.

One of things that irritated me about external USB/Firewire hard drives for a long time was that they stayed on when the computer they were attached to went into low-power sleep mode. Fortunately, it turns out that the Western Digital My Book line of external hard drives are smart. They not only place themselves in [...]

One of the things that interested me the most at the Web 2.0 Expo this past April was the…
Potenco Human Powered Generator
…that is associated with the OLPC (One Laptop Per Child $100 notebook project). It looks like a giant yo-yo and is powered by pulling a cable (like an old style gas powered lawn mower). [...]