How to track which external link users who registered on my site came from Google Analytics shows how many and from which links people have visited to my site as I have installed the Google Analytics module. How can I know from which link the individual registered users came from?  For example, I would like to know something like:


  The user (uid:30) came from  http://example.com
  The user (uid:31) came from  http://somesite.com


Or do I have to ask users directly by making a kind of "Where did you know about us" profile field?
I believe StatCounter allows for this
http://statcounter.com/
http://drupal.org/project/statcounter  

I believe what your asking for is against GA's TOS http://drupal.org/node/318974