Can you use Google Analytics on Facebook fan pages and fan page walls? You betcher sweet ass you can.
For Facebook applications, there is an FBML tag that will allow you place your Google Analytics code on the canvas page – but this FBML will not work on fan pages, application tabs, or anywhere other than the canvas page.
Rather than writing something from scratch, it makes more sense to direct you to a post on the Webdigi blog that offers a free set of PHP scripts that will let you do exactly that.
The PHP script they are calling contains the Google Analytics code, and accepts parameters so that you can re-use the script on multiple fan pages (or different pages in an application) simply by setting different parameters.
When your Static FBML tab, application tab or non-canvas app page loads, it loads that “image” as part of the page. That “image” then pings the PHP script, which pings Google Analytics. This could be adapted for other reporting systems as well, using the same concepts.
The guys do a nice job with their script, and they even offer a wizard that helps you figure out what you need to put where.
I had rigged up a script a few months ago, but I never really had the time to package it for the general public, make it easy to configure, and so on, so go ahead and check out their script package.
Using this method, you’ll even be able to set up funnels and goals for your Facebook fan page stats, and Webdigi offers a great breakdown on how to tell the difference between fan and non-fan activity on your fan pages in your reporting.