10 Keyword Optimized Articles.

I need 10 articles written about a single topic in the health industry. Interested bidders should know how to write keyword optimized articles. I will pay $3 an article. Each article needs to be optimized for a different keyword, have a keyword density of 3 to 4 % and a word count of 500 to 600 words. I'll supply the topic and keywords. All articles will become my property upon payment and may not be redistributed. Articles are to be supplied in txt or doc format and should be unique (not second generation copies). I'm looking for writers who are interested in longer term projects as well, as I'll need up to 100 articles per month on a variety of topics.