the difference is just 17.7W and 3.8W for CRT and LCD respectively. What that adds up to over the course of a year, for every second you spend doing a search on Google is anyone's guess.

That was my favorite part. I'm guessing they just hooked up a some kind of Kill-A-Watt given that:

PCSTATS has an electronic power meter which can actually measure the amount of energy it takes a monitor (LCD and CRT) to display any given website, we've actually got a valid set of criteria to look at.

Never mind the nomenclature, there is cost forecasting on those devices, and given a few basic parameters you could figure out the cost per year searching Blackle rather than Google on the back of a napkin, so its not "anyone's guess".

price_per_killowatt_hour: $0.10

hours_searching_google_per_day: 2 hrs

watts_saved: 17.7

hours_searching_google_per_year = hours_searching_google_per_day * 365

kilowatthours_saved_per_year = hours_searching_google_per_year * (watts_saved / 1000)

price_saved_per_year = kilowatthours_saved_per_year * price_per_killowatt_hour

Which comes out a little over a buck twenty five for a CRT and more than a quarter per year on an LCD using those parameters for one person.