The real amount of legit work at home jobs, varies at few and far between, however, if you can manage to find a really legit, honest and true work at home job - hold on to it for dear life! You can literally find millions upon millions of work at home ops, jobs, businesses and programs available online. Its important to do some major research though before actually joining up with a company especially if you need to invest money, which you almost always need to do. The only time you wont have to invest money is with something like Freelancing or Affiliate Marketing. Either way, still make sure that you check your sources and resources out beforehand especially before making any big jumps!
One of my favorite things to do which seems to really help out a lot is to look up review sites. These review sites are usually Drupal or Wordpress blogs where people will actually review different websites, businesses, programs and schemes online. make sure its a legit review site though. A few years back I was thinking of joining up with this one program. I thought the blueprint sounded really legit and all that good stuff. But then I checked one of these review sites out and this guy was majorly bad talking the program. It sort of scared me because the things he was saying were things that I just didn't want to be involved in. It turns out with a little research on my part that this guy bad mouthing the program was actually an ex employee that got fired for being "unsavory".
So in some cases its good to pay attention to these review sites but its also good to take them with a grain of salt. In fact, if I were you I would check a few sites out for the same program or business and then weigh the results based on the reviews. Also, check out the BBB online. You would be amazed the amount of people that go there and send in reports on different companies and the BBB actually will investigate! Depending on what you want to do and what your good at you can find all kinds of ops online. Maybe you want something on the professional side like Accounting, Legal, health, etc. or maybe you have a trade that your good at like web design, SEO, SEM, or content writing.
Either way, whatever you are interested in or are good at you can surely find a job op online to make you some money. Some places you might consider checking out are forums, money making message boards, online newsletters, and safelists. Safelists are cool because you will get a ton of work at home ops available from people all over the world! Just make sure your cautious before joining any program - working at home can be incredibly fun. I wouldn't want you to get put down before you even get out of the starting gates!