So how can I get referrals?

You can get two types of referrals. First, you have direct referrals. These are people who join the site that clicked your referral link (found in the banners page) or people who put your name in the refferer field when signing up. You can also rent referrals. People who join the site with no referrer will be added to that particular ptc web site's renting pool. This means that you can rent referrals for 1 month. All clicks they make in that month will also earn you money.