There are actually companies who look for freelancers who can write articles or reviews. You can check them in outsourcing sites like odesk, elance and freelancer. These sites are legitimate so you don't need to worry about scams - a guaranteed work is a guaranteed payment. You can check some info of these legitimate outsourcing sites in this blog: http://www.timedoctor.com/blog/2011/...ow-to-use-them
Jobs are posted here that everyone can see it so you might want to check them. You can then bid from the projects that are posted. Also you can give sample articles so employers can evaluate you that you are good in writing.