How do you fine tune an online marketing campaign?

I received a question via email about my introduction to website performance tracking. It was a great question and I thought it was worth covering in an additional post.
The question was “You talked about using Google Analytics to help fine tune my online marketing campaign – can you give me an idea of the types [...]

An introduction to website performance tracking

One of the reasons why the Internet is such a great marketing tool is measurability.
There are more metrics available through free website tracking tools than even the most marketing savvy business owner will ever need. Here are just a few things you can measure:

How many people visited your website.
Which visitors were new and which have [...]