I think some of the worst advice for making money a lot of people talk about and is kind of the first advice you run into when you get started online.
That advice is to go and do surveys and use other similar sites. While these all have their place, when you really look at how much time it takes, and how little you get, it is really not a viable way to "make money".
You would be much better off just getting a second job that you only worked 1 hour a week. I am pretty sure you would probably make more doing this at minimum wage than you would with doing surveys on most sites.
The few people who do make an okay income aren't really factoring in the true value of their time.
In the day and age we live in, there are so many ways to make income on the side and in my opinion, doing surveys is not one of them.