1. Connect with yougov.com with your Facebook account - it only takes a few seconds!
2. Earn 2,000 points just by signing up!
3. Complete surveys and earn even more points!
My first survey was worth another 500 points. At that rate you could earn a gift card pretty quickly! To get started, sign up here.
From their site:
When you join the YouGov panel you are joining a worldwide community of people who like to express and share their opinions, and earn points along the way.
As a panel member you will receive regular email invitations for new surveys. Every survey you complete earns points that when accumulated can be redeemed for rewards such as movie tickets, gift cards, and other prizes. You will also receive surveys that don't have points but enter you in a monthly prize draw.