I use Wyzant, so I can't speak for any others, but I made a profile, listed my background, and set my own price. I then apply to students, as well as respond to students' applications, to set up lessons which will earn me money. You kind of set your own schedule, but you are going to need to be available when the students are. In other words, unless you specialize in college level courses, most students won't be available until the late afternoon/evening.
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.
You actually level up doing these, the people who post the "turk" will rate you, and as you level up, you get access to higher paying bids, mission critical stuff that cant be wrong. At first the jobs are seriously only about a nickel or 25 cents, but you can do them fast. The good ones can be a few dollars, but you can pound them out fast, dozens in an hour if you're good.
While product testing is offered, you’ll only get sent items if you qualify, and then it will only be a couple over the space of several months, so think of this as a bonus, rather than a regular part of your work. Some users get frustrated at the length of time they have to wait for vouchers to arrive after they order them – especially when somewhere like Opinion Outpost will pay out straight away. However it is unfortunately quite standard to have to wait weeks for payment from survey sites. Surveys range in duration from about 15 to 30 minutes and there are mini polls on the website which can help you tot up small amounts of extra points. Points do sometimes take days or even weeks to appear in Toluna accounts, which is worth noting.
MyPoints. This site offered 75 survey opportunities, the most of any site we tested. But it also had the lowest success rate, 9.33%, and a low average hourly pay rate. Plus, the reasons for survey disqualifications often were unclear. On one occasion, we were disqualified after being asked to write the word “Purple.” (Yes, we spelled it correctly.) See our full MyPoints review.
There's a few sites that I use daily to make roughly $400 a month for very little work. /r/beermoney is a lot of help for me. I mainly use Swagbucks, Perktv, Instagc, and Bing rewards. Swagbucks and Perk let you run advertisements on your phone to make $15+ a day. Bing rewards is done by using bing as a search engine and will make roughly $5 every 20 days per account with a maximum of 5 accounts per household.
I also like Mechanical Turking but it requires you to enter your social security number because it is taxable income. You literally earn cash that you deposit into your account. I have been doing it for a year and it is completely safe and backed by amazon. Visit the Mturk subreddit and be sure to read all about it before you fire it up. The most important advice you will find there is to use Turkopticon which has reviews about posters there. It will help you avoid the surveys that don't pay that well. Keep in mind that there are other tasks that you can do like transcription and such so it is best to use the word "survey" if you want to stick to surveys.
This site offers surveys for money, paying out cash rather than points and allowing immediate rewards. Crowdology is a pretty popular website with a decent reputation which works with big brands and television shows, so can have some interesting content to keep you interested while you’re filling in forms. You could be answering questions about everyday topics or issues, such as saving money or online shopping, as well as your opinions about various products.
To those who aren't using this site already, Clickworker is one of the best sites to make great money. I average around 15-20 dollars per hour, and you could make that without much focus or thinking. The tasks are extremely easy and they restock every week. This is seriously the best site I've used so far and even beats mturk because there are jobs available at all times. Make sure that you sign up for "UHRS web entry" because that is where you will most of your money.