After joining a survey site, you provide some personal and demographic information, which legitimate survey sites will keep private. That information will be used in choosing participants to take surveys on certain goods and services. If you get selected to take part in a survey, you will be notified through mail to take a short survey to see if your profile suits that survey. When you are deemed qualified, you will be requested to take a longer survey.
IOCS is a not-for-profit research organization that conducts studies and experiments on shopping-related behavior – things like how we, as consumers, evaluate products, how we make the buying decisions, etc. Although the focus is mostly on shopping related behavior, some of their experiments and studies include broader areas of marketing, psychology, and economics.