Tracking, Tracking, Tracking - John Reese

First things first, you need to know what you want to track, is it PPC efforts, SEO, site conversion or something else.

This is what I tell all newbies about tracking. Do one thing immediately and learn it completely otherwise your going to end up with lots of data and no information.

1) Install Google Analytics on your site and learn what all of the numbers are. You can actually use Google to find some good advice on how to install and interpret the numbers.
1b) Set up a funnels/goals/conversions. Again Google is your friend here for more information.

This gives you the insight as to what people are doing on your site and how your site is performing conversion wise.

2)Depending on your traffic you will need to setup tracking for that, for example I do alot of PPC and I recommend Prosper202. But what ever traffic source you use you need to be able to pass in data to your site so that your see how that site traffic interacts with your site.

These are the sources I would recommend you start with. This will help you understand the right questions to ask.

davidbullock.com
stomperblog.com

ok cheers, yeah i already use tracking202 for ppc, want to track based on changing variables on the site like headers, titles, pictures, etc.