if you have never seen a Common Craft Video, you must check some out now!
Here is one on CFLs worth watching and sharing with your users:
what lights to choose? May 13, 2009
Ecohomemagazine.com has a good article comparing various types of lighting: CFLs, LEDs and Halogens. There is a nice chart on this blog about it as well – the green workplace – though its small and hard to read.
