When I had my sign business online when someone entered my site you did not have to even sign in it would tell me who and from where you were the more you spend the more info you can get and that was a couple of years ago.
stocky101..I think it can be done with a spider..someone I know who posted on another stock board would put the spider on and see where all the viewings were from. I don't know much about it..but the guy would list the places that had logged into the site.