Energy...

Love music? Love the environment? Then let's talk about this year's greenest audio devices.

Like all electronics, audio systems can contain all kinds of toxic materials. They aren't always easily recyclable, and they often come with too much packaging. They also tend to use a lot of power, a critical concern when we're trying to make things more energy efficient.

To help make sure you're choosing the greenest audio components, MetaEfficient has named the Greenest Audio Systems of 2008. Winners include the Pure iPod dock, the Samsung SWA-4000 Wireless Rear Stereo Amplifier, and the Panasonic SC-PT650 home theater system. Several brands of speakers and receivers are also rated.

All of these devices ranked well on energy efficiency, and often use eco-friendly manufacturing processes. 

There are other ways you can "green" your music. You can buy any number of solar chargers to keep your MP3 players juiced up. Buying music digitally can also be green, since it doesn't involve any manufacturing or shipping. 

Got other ways you keep your tunes eco-friendly? Post 'em here!