My good friend Brian Hack (and he is a friend, that is not just one of “those” expressions LOL!) has just developed an awesome site you really need to check out.
If fact, you can join for FREE and get your hands on Web Ad Tutor “Introduction to Ad Metrics”.
He’s giving you these instructions for free even though it has a $47 value and is the equivalent of a Silver upgrade.
Stop Gambling Your Hard Earned Money Away!
Start with a simple process you can apply to find the ad that converts best…
Discover the single most important thing to remember when writing your ad. Skip this part and watch Google Adwords burn a hole in your pocket…
Learn about the single biggest mistake that you must avoid when planning your campaign…
If fact, make your advertising pay you back 
I like free, just worried about spam mail
I do this for a living and I don’t even know all the metrics. Haha.