Below is a list of some of the surveys I have personally used and have had success with:
While you can search and shop and earn points, you can take surveys and accumulate swagbucks faster when you qualify. Even if you don’t qualify in most cases you still get a swagbuck for trying.
I have had a good bit of success with both surveys and product tests. They currently have a new promotion for US members where member can earn $5 per month per device for installing SavvyConnect on your internet connected devices. Click the link above for details.