There are many sites that offer money for taking surveys, but read a few reviews before you sign up. Although I haven't used it for reviews, I have been using Swagbucks this year as a search engine and the points have piled up quite quickly.
You Can Get Free Gift Cards For Shopping, Searching and Discovering What's Online at Swagbucks.com
One site that has a list of legitimate survey sites is Surveys Say. Also be careful with putting too much personal information on sites that may not be genuine survey sites. Before signing up make sure you know enough about the company to make an informed decision.
Complaints List is another place to check for reviews.