What It Is: Many companies pay online testers to make sure websites are intuitive and easy to navigate. "You basically follow the instructions you're given to check out the website," says Anna Thurman, founder of RealWaysToEarnMoneyOnline.com, a site that has reviewed more than 500 online work opportunities. "It usually only takes about 15 minutes per test." Thurman recommends registering with 10 to 12 different companies since the opportunities to test these sites are doled out first come, first served. "There are people who make $100 to $200 a month by staying on top of those tests," Thurman says.
It can be difficult to balance school with a work schedule, and that balance is even harder to come by when you factor in the commute to and from work. Jobs on campus, therefore, tend to be a really good fit for college students. For one, on-campus employers tend to be more understanding about academic demands, and are used to accommodating staffing changes based on fluctuations in course load. In addition, you won't have to worry about scrambling from class in order to make it to work on time, and working on campus is a great way to meet new people. You’ll also make valuable connections with faculty and staff at your university. 
While you don’t necessarily need much experience to become a researcher, earning the best pay comes from specializing in an area you have some expertise in. And while you may find the research easy, know that you will likely have a set of guidelines to follow. Get the details on my Get Paid to Be A Know-It-All post, and see if the following are hiring:
How to Get It: GoFluent.com is an English training company working with 12 of the world's largest corporations. There are also jobs out there for English as a Second Language (ESL) teachers, which are more structured. Visit ISUS (iSpeakUSpeak.com), a placement and training company. While a degree in education or ESL is ideal, you are encouraged to apply if you are enthusiastic and articulate.
College students make money online in all kinds of different ways, and the ones doing surveys aren’t going to be millionaires any time soon. That said, anyone with the time to sign up to two or three survey providers and answer all of the surveys offered them should easily clear an extra $30 (£25) or more each month. Taken in the form of Amazon vouchers, this is a good way to keep up with those essential reading list purchases.
How to Get It: Begin with sites like UserTesting.com, YouEye.com and Userlytics.com. Register with multiple companies for opportunities to test as many websites as possible. Once you're in the system, you'll be emailed when testers are needed, and if you're one of the first to respond, expect to spend 15 to 20 minutes completing the test. Many sites require a microphone and/or webcam, which are built into most laptops—but if you need to buy one, they aren't expensive. The tester sites typically pay within a week or two via PayPal.
Have lots opinions on what works and what doesn't on the web? Then you might just be right for a "career" in remote usability testing. Actually, no one really makes a career at it, but user testers can pick up some extra work reviewing websites or mobile applications that may still be in development. You don't even necessarily have to be very knowledgeable about the Internet because some developers want the beginner's point of view.