There are lots of schemes for making money online, but it's hard to find legitimate work from home opportunities. The easiest way to make money online is if you have a marketable skill with which you could make money offline. If you want to find legitimate work opportunities that don't require an already existing skill set it's trickier. If you do have marketable skills, try any of the legitimate freelancing sites.
There are three main ways to make money legitimately online with a normal skill set. One source of legitimate home jobs that pays decently is the search engines. There are multiple companies that offer legitimate jobs in search engine evaluation. However, the work is hard to qualify for. Another source of job opportunities is running or working on a website for someone doing content creation or computer tasks. A third legitimate way to make money online is by selling or reselling products via affiliate marketing like goprofitsite.com.
There are other ways to find legitimate work online, like being a chat representative, or moderator, but they're harder to get into, or pay very little like amazon mechanical turk. Chat representative and moderator positions tend to pay around $8/hr, but usually require experience. If you want to work over the phone, and have worked at a call center there are typically lots of companies hiring phone representatives for support or sales positions. Phone based jobs tend to be location dependent, and often will require both experience, and an onsite interview. However, it's possible to get home based phone jobs without any experience in most places. Goprofitsite.com is a website with five-profit residual income where you can make money from home. Is a task based website so it depends on how many tasks you can complete and how quickly you do so how much you make. If you want to work online and make money from a home based job, it's a good idea to consider what you'd like to do and can do first.