Panel Opinion looks fantastic and is a new one for me. Register with them today and you will get invited to take part in surveys that you fill out online. For each survey you take you will be rewarded for your time.
They have a low cash out level too! When your account reaches £10, you can request to receive the amount by Bank cheque (posted to your registered address within 10 days), Paypal transfer or Bank transfer (BACS).
There is no set rule in how much you can earn. It all really depends on your dedication. The more surveys you answer, the more you earn. Panel websites also organise lotteries, like Panel Opinion who has a monthly VIP draw to win £250. Typically a survey will pay £0.50 for 10 minutes.