There are various ways students can earn money to at least generate their own pocket-money. We have already written a few posts about this in the past. So this post is a round-up of some of the old, as well as new methods you can earn money online while studying. This does not apply only to students, but also to house wives or other unemployed people who want to earn some money.

You and all five of your roommates have a not-so-healthy love of Mountain Dew. First, maybe switch to diet? Second, turn all those empties into a healthy chunk of change by bringing (rinsed!) cans and bottles to your local recycling center. If you alone drink two cans per day everyday, at an average 5 cents per can, you could have more than $35 at the end of the year, enough for a few weeks of laundry—or a steak dinner.
If you have a passion for fitness, you could consider becoming a personal trainer. A lot of people simply need accountability and a little instruction to get going to get fit, and a personal trainer can help with this. And that's just the beginning. If you get a following, you could turn your passion for fitness into something big like Steve Kamb did with Nerd Fitness.

Along the same lines as donating plasma, young and healthy adults could donate their sperm or eggs for money. Donating sperm doesn't command much, but it can be a small supplement to your income. On the other hand, donating your eggs could earn you anywhere from $10,000 to $15,000. However, there's work involved in the process, and it's not painless.

Similar to investing, peer-to-peer lending is where you loan money to someone else, and they pay you back with interest. The great thing about peer-to-peer lending is that you can lend as little as $25, and your loan will get bundled into a bigger loan for the borrower. Each month, they'll pay you back principal and interest. You can snowball this initial investment into many investments because you get your principal back as well each month. Many lenders earn over 5%-7% on their investments. Check out Lending Club to get started.
Being a college student and making money at the same time is difficult, but it depends on your attitude and flexibility to make this change. In addition to the above mentioned options, there are many other ways to earn money while studying. But the above listed ones are most common and tested by students worldwide especially in the United States and United Kingdom.
Not only will you be helping meet a critical need, but those pints of plasma or bags of blood can earn around $20–$50 each (and you may even be able to donate multiple times per month). Never donated blood? You’ll have to answer a few questions, meet blood donation eligibility requirements (check out the Red Cross donation guidelines), be cool with needles, and have anywhere from 20 minutes to an hour to spare, depending on the wait time to sit down with a nurse. Plasma donations are a bit more involved: you could be hooked up to two needles (depending on the machine), have little mobility, and it takes about one or two hours total—but you’ll probably spend that time watching a movie surrounded by lots of nice nurses! Just be sure to take it easy after donating and replenish your fluids with lots of water and juices.
College can be a great time to learn the ins and outs of investing so you can become a smarter investor when you begin earning a full-time paycheck. If you don’t have the time to learn about investing, but want to get a head start on building a nest egg so you can retire early, Betterment is a hands-free way to earn regular dividends that can turn a $100 investment into $1 million during your lifetime.