Hooray. You found the secret headquarters of the praetorians.
Who we are?
We are a secret society of nerds with only one goal: Put Pi signs on as my websites as possible.
How can I join?
That's easy as pi. Just put a Pi symbol to the lower right corner of your website linking to this page and you're done.
Welcome to the Praetorians!
Here is an example code you can use:
<div style="position: fixed; bottom: 0; right: 0; margin-right: 4px;"><a href="http://praetorians.nekudo.com" style="color: #000;">π</a></div>
If you're using wordpress you can also use the Praetorians wordpress plugin.
Why should I join?
Because it's fun and nerdy.
I still don't get it.
In this case you should watch the film The Net.