One of the many ways of  adding Google Analytics to your site is via the text/html module.

Add the Text/HTML module to the page you want to track.

1. Edit the text
2. In the text editor switch to source view in the upper right hand corner.
3. Paste the Google Analytics code into the textbox.
4. Click Update
5. Now go to the module settings on the Text/HTML module
6. Name the title, "Google Analytics" just as a good practice.
7. Expand the "Advance Settings" area.
8. If you want to track all pages put a check mark next to "Display Module On All Pages"
9. Expand the "Page Settings" area.
10. Uncheck the box next to "Display Container".  This will keep the container from showing up.
11. Click Update.

Stuart

I would suggest placing it in the default.aspx file right above the "</body>" tag at the end like below. There are many reasons to do this. It is easy. You don't have to add it to new pages as you create them. You don't have a module showing up on every page that you might have to change some day when the google code changes (as it is now with the new javascript code).  - thanks, Will.

    </dnn:form>
    <script src="http://www.google-analytics.com/urchin.js" type="text/javascript">
</script>
<script type="text/javascript">
_uacct = "UA-xxx379-3";
urchinTracker();
</script>
</body>
</html>