The point of each survey is to present you with a topic you're interested in and qualified to discuss for the benefit of the researcher. Surveys range in time required, from very short to quite long. Because researchers are looking for opinions only from certain segments of people, you may find you have to try a few surveys before you're qualified to give your opinion on one. Keep at it, and you'll eventually find one that's right up your alley.
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.
You won't get rich doing these things but it's legitimate and you'll get paid in the end. For example, you get a penny for each email you click. You get a penny for a video stream. You can earn dollars for fulfilling offers but those aren't nearly as quick as reading an email. They are upfront in what you get paid so you can decide if it's worth it.
Mainly conducting polls for governments, public bodies and the business world, Opinion Outpost is a popular survey site as unlike some sites, which require you to accrue a significant amount before you can claim your money, it has one of the lowest payout thresholds. You only need to fill out five surveys, earning a couple of dollars, before being able to claim pay, so you can redeem your money more quickly.
A well known survey panel, Valued Opinions is owned by leading market research company ResearchNow and is open to people in more than 20 countries around the world, including the USA, UK and Australia. The site uses a range of different languages and has around three million members busily filling in surveys and questionnaires. Most surveys taken will reward you between $1 and $5 and take up to around 20 minutes to complete, asking you about marketing, brands and products and even news events. There is a steady rate of invites to surveys, but you won’t always be qualified for them, which can become tiresome.