I've been freelance writing online since 2005. I also blog my articles on the 55 blogs I created and maintain, one being this. When I say that I have 55 blogs, someone invariably asks "Pray tell how do you keep up???" Fair question.
1) Freelancing is my job. I write 30-40 articles a week --shorter on sites like Bubblews, longer on paid content sites. Read on for the rest. Writing for the Web 101 How I Manage 55 Blogs