Toluna

Toluna was the first site I signed up with several years ago before I started to regularly take paid surveys. I still like this site, in fact it usually gives me the biggest payout per month but if you look at the actual reward for time spent it is a very low paying site. There are two reasons I still use Toluna, the first is the availability, they have lots of surveys, you could spend all day taking surveys and not run out, the other reason I like this site are the recruiting surveys. Very few people are aware that survey sites are the main source of recruiting for product trails (product testing) and online focus groups. Product testing is where a company send you, usually a full size sample of their product to try at home and you then answer their questions at the end of the trial. Online focus groups are a demographically selected group of people who are asked to join an online community and are required to participate in tasks and discussions, these focus groups are usually paid and additional cash incentive to take part.

Toluna is infamous for screen-outs and they do take a long time adding points to your account and to release rewards but if you're patient, the rewards will start rolling in.

Survey Availability - Very High
Payment - Vouchers
Payment Timescale - Very Slow
Screen-outs - High