Wouldn't it be great if you could affect the decisions that are made by major companies regarding the products that they offer? By taking marketing surveys you can do that while getting paid at the same time. With the power of the Internet you can find hundreds of sites offering to pay you money to take surveys.
The problem becomes telling the real opportunities from the scams. With proper research you can find which ones are legitimate paid surveys and which ones are not.
The first trap to look for is companies that require you to pay them a fee before they will send you surveys. A legitimate company pays you, not the other way around. Run, don't walk, from these companies.
It is imperative to do your research first. Look for well established companies with proper credentials. If the offer sounds too good to be true, it probably is.
This is not saying that surveys are to be avoided. By spending a bit of my time taking them I have earned some extra pocket money while affecting future products. It is exhilarating to see a product you helped shape at the stores. I've made a few mistakes along the way, but it has also been an enjoyable experience.