Content Writer for websites

I am looking for a content writer for my websites that are on a variety of subjects. The work can be of two types - 1. I will provide the topics and keywords. Each article will be about 500 words and will require a little bit of research. 2. Re-write article. You should have experience writing articles for American audience and be able to write atleast one article per day. Articles should be original and will be checked with copyscape. Please quote for a set of 10 articles.