One good way to make online is by becoming a affiliate to a reputable company. As an affiliate, you get a percentage of any sales that you refer people to make. If you are marketing a popular product, and customers are clicking through your link to make a purchase, you can earn a tidy commission.
You should never put all of your hope into one online job. It's better to have more than one online source of income. The reason for this is because the Internet is always changing. While one day a business could be thriving, you never know what could happen to that source of income.
You won't turn into a millionaire, but you can make a good amount of cash online by working hard. Hard work will help you succeed, but this information will also prove valuable. Best wishes in your endeavors for financial freedom.