adf.ly is a new and exciting way to earn money with your links. All you do is put your adf.ly code before your link. When someone clicks on your link they are taken to an advertisement for 5 seconds before going to the URL given. You are paid at a rate depending on their current advertisers.
Rates can be found here
Referrals
adf.ly has a referral package where they pay 20% of you direct referral lifetime earnings.
Payment
adf.ly pays accounts once a month if earnings are over $5.00US to either Paypal or Alert Pay.