1. CashCrate
Most offers are aimed at USA, Canada and Great Britian, people from other countries can join but will not make much from the signup section but the site does have in my opinion the best 2 tier referral system on the internet, where you can earn up to 30% / 20% of your referrals earnings. It is 0% activity requirement to earn from downline!

2. SurveySavvy
Must join international survey site, with an awesome 2 tier referral program. Fill out your profiles, and get e-mail invitations to make cash for each survey you complete. $2 to $100 for each survey, and cash out whenever you wish (no minimum payout). More technical jobs get bigger payouts it seems.

3. TreasureTrooper
You can be rolling in the dough within hours, you can literally make hundreds of dollars this way (fill out forms for sponsors, complete surveys, sign up for free trials and get cash back on online shopping). You will be paid monthly. 2 tier referral program. You also get an unheard of 20% of whatever your referrals make, and 5% of what your referals' referals make.

4. AdPaid
Basically Paid-To-Read Site (Yes, Probably you know, AdPaid is the very best in the industry. Of course the number one). But they have MORE. The daily surveys pay to survey-friendly country (currently 8 European countries; you need to check). 6 tier referral program.