An increasingly popular way for students to make money is to fill out online surveys in their spare time. Research companies are always recruiting new members worldwide to answer surveys and test new products. For a few minutes of form filling, you can make a couple of quid which is paid as cash or rewards. You can bag up to £3 ($5) for some surveys! Interested in earning cash for doing what you already do online? This has to be one of the easiest methods of making money online without really any effort or change in your behaviour.