Bigpicture
Jackin
Xbeewatt
Wattgraph
As promised here’s how to make your own Tweet-a-Watt, a twittering power meter that can show your friends, your followers and the world how much power you are (or are not) consuming. We entered this in the Green Gadgets design competition, wish us luck!

We’re calling it “Wattcher” for now and some of the documentation is in progress – but a lot of people really really wanted to get started so we’re posting everything up as we work on it…

Resources:
Wattcher start back (links on the left).
Make it!
Listen!
Resources
Downloads

This is an open source hardware project, anyone can make them – we’ve even heard from a few makers out there already that plan to make their own versions and sell them.