It is possible to find legitimate online jobs for students, although many are scams and you should exercise caution when applying or signing up for anything. Never pay up front for anything, until you are entirely certain that the company and the job are all they claim to be.
If you are looking for legit online jobs at home in order to make some extra cash, concentrate on what you are already good at. For example, if you are a capable writer, there are plenty of sites that pay a few dollars for articles of several hundred words. You are not going to become a millionaire from any of these sites, but if you work hard and deliver good work, it is possible to make a little extra. Some of the better writing sites include Textbroker, The Content Authority and Suite 101.
It is difficult to earn a lot of money with online jobs from home, regardless of your skill or area of expertise. If you work for a company that requires payment up front, you will be unusual if you make enough money to earn back your startup payment. If you are prepared to work hard and become proficient at a particular technique or program, you may be able to make decent money with such companies as Online Writing Jobs, FAP Turbo and Maverick Money Makers.
Attention to detail and working hard are the two keys to making any money with any of these online ventures. Even if you are just working part time on line jobs, you will have to be focused and work hard and remain optinistic and positive at all times. If you have the discipline and can perservere, it is possible to succeed and make some money and enjoy the advantages of working for yourself on your own schedule.