Spider Metrix

SpiderMetrix is undoubtedly the most fun survey site on the net. Participation here gains you points which can then be exchanged for a variety of different thing including online gift certificates. Log in every Friday to answer their new quick polls for easy points and earn more for website recommendations, taking part in their competitions, referring friends and, of course, answering surveys.

E-Poll

E-Poll hold regular polls on their site and send out paid surveys on a variety of different subjects. Completion of their surveys earns you points which can then be exchanged for items in their extensive prize catalogue which contains items such as CDs, computer games or gift certificates for major online and offline shops, restaurants etc. Every new member gets 1,000 points free and with the minimum reward starting at a mere 2,500 points and individual surveys paying up to 3,500 each it's easy to see you can cash in pretty quickly here.

One Million Eyes

OneMillionEyes rewards you with "Eye Points" for every survey taken through their site. Each point has the cash equivalent of $0.10 and they will send you a check when your account reaches at least 100 points($10). OneMillionEyes is a new-ish site which I'm assuming is for US residents only seeing as they insist you enter a US State when you register even if they do also ask for a country of residence as well!

NPD Online Research

NPD Online Research rewards survey participants with entries into various sweepstakes to win one of many $100 prizes and one major prize of $1000 every month. In March 2003 there were 395 $100 prizes awarded and every new member who joins up is automatically entered into a draw for $1000 so there are multiple chances to win here!

Global Test Market

GlobalTestMarket is one of the busier online market research sites out there, typically sending me several paying surveys each month with an average cash equivalent of around $5 each. Every survey you complete here earns you points which can be cashed in once you have reached around $50's worth - i.e. around once every 4-6 months in my experience. This site also offers the most varied surveys I have seen from just one site with recent invitations ranging from evaluating movie and computer game trailers to being paid to complete questionnaires on toothpaste and shampoo.

Survey Spot

Survey Spot are a very active online market research company which pays members from the USA and Britain to complete surveys on a wide range of subjects. Each survey completed here gains you an entry into survey specific sweepstakes with top prizes worth thousands of dollars.

Internet Panel

Every time you complete a survey here you will be entered into sweepstakes with prizes currently consisting of a Mini Cooper, cash, televisions and more! Their surveys are relatively frequent at the moment as well so lots of opportunities to win some really great prizes!

Market Score

MarketScore is a market research company which monitors internet trends such as which sites are frequented most, how long people spend online etc. from different demographic groups. They guarantee their research is completely anonymous so they will not be collecting personal information about their members but instead providing their clients with aggregate results for demographic groups. In return for you allowing them to collect non-personal data about your surfing habits they will give you a free internet accelerator which they say will increase your browsing speed by up to 75%, an email inbox virus protector powered by Symantec(the people behind Norton Anti-Virus) and the chance to win prizes like $30,000 cash, a BMW Z4 convertible, a fabulous vacation for two, or one of many $100 American Express Gift Cheques!