Here is the explanation of how it works (copied from the help section) :
Question / Issue
How much can I make?
Answer / Solution
We
can't say exactly, but here's an example of what could happen. The
chart below assumes you refer 3 people, and those 3 people refer 3,
then those refer 3, through 10 levels, and each referral gets 1000 page
views for the month, and the month's RSR (Revenue Sharing Rate) is
$0.50.
Results are not guaranteed. This is just an example of what could happen. Please see terms for full details.
Question / Issue
How do I get paid?
Answer / Solution
You have a choice of 2 ways.
1. Paypal. Paypal is an online payment processing company owned by EBay. Very secure, very reliable, very well known.
2. We can send you a check. If you choose this method, there is a $1 processing fee to cover postage, and other overhead.
Question / Issue
What actually counts as a paid page view?
Answer / Solution
When anyone views any of these pages, it counts as 1 page view for you:
1. your profile page
2. your blog pages
3. view all your friends
4. view all your comments
5. your picture pages
6. if someone views one of your shared layouts
When you view any of these pages, it counts as 1 page view.
1. any of your control panel pages, including but not limited to: settings, messaging, friends, referrals, favorites, etc.
The following does not count as a page view:
1. Refreshing/reloading a page
2. Any page that's viewed within 3 seconds of the last page doesn't count
Sounds awesome to me 
