This is an interactive site with sponsored polls which you earn points on (15 points per each one answered). Once you collect points you can convert these into high street vouchers and other like items. I have been a member of this site for a long while and have had a great time with it.
It is also fun to join as it is like being part of a community and you can create polls and give your opinions on it giving you the chance to interactive with other members. You also get a regular opportunity to answer surveys. I am a member of this site and get many survey opportunities on a regular basis so the points do add up quickly.
Check out the older post here: http://top-survey-sites.blogspot.com/2008/03/toluna-test-vote.html