Are there any websites which offer a free product to you for the sake of market research and only that?

Are there websites out there that will give you a free mp3 player, computer, phone, game, sports gear etc. without having to complete a certain number of offers that will end up costing you money? Is there truly a no gimmicks website that will give you a product to keep, if you write a customer review and submit it to them?

i use http://www.freefreebies.org/ they're new but cool and update daily

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