I haven't had success with bidding sites (eg: freelancer.com), so I prefer to write for content mills and choose the articles I am interested in. Another good site is wikio experts. They rejected my sample article- maybe you'll have more luck. You can also write for thecontentauthority.com, but the pay is quite low. However, you will find everything you need on the list I sent you. It is the most complete list I've ever found. If you are good at writing about gadgets, you can try makeuseof.com. They pay about $50/500-700-words, but they have very high standards. I've written one article for them and they really pay and give you advice on what to do. I gave up because they were making me nervous.
Feel free to contact me whenever you need advice and don't be afraid to ask questions on WAHM

The people who post on this forum are very friendly.