I did this for Facebook back in the day back when you used to be able to post your own images! Back in the early, early days. I got a few blogs to write it up

I did this for Facebook back in the day back when you used to be able to post your own images! Back in the early, early days. I got a few blogs to write it up because it tracked the referring URL so you could send out special links to people and then track how often they viewed your profile. I miss being young and having a seemingly infinite amount of time on my hands...