Ever heard of Textbroker? If not, you have now. Get paid to be an author. You don’t have to be a professional writer, although proper spelling and grammar are required. You can get paid close to 100 bucks or more for an 8,000 word article that you write. You pick the topic. The client sets the deadline and you have X amount of days to finish the article in your spare time. You can set your own rate or use OpenOrders. With OpenOrders you are paid a fixed rate per word. The rate is set by the client's chosen quality rate.
Some people have also reported HubPages as a great way to earning money online. Every time you write an article or “hub” you can generate a large amount of traffic to your site. The more hubs and the more you grab your reader’s attention, the more hits you get. Then you can earn money through Google Adsense. HubPages has a very user friendly way of setting this up.