Article Writers/researchers Nedded ASAP

I am looking for long term article writers preferably those who are native American, Australian or British English writers. Writers from other countries are also welcome. If you are a good writer, this project can last for at least several weeks. This project is a ongoing project and articles will be expected to be 300-700 words each at a rate of $1 per article. The articles needs to contain a particular keyword phrase (which we will provide) which should be used in the article a number of times. More details to the winner. The articles should be well researched and interesting to read. Articles must be well written and free of any grammar and spelling errors. The topic of the articles will vary however they will be on topics related to various niches, but nothing adult or immoral. All work must be 100% original and pass Copyscape. I will own all copyrights to all work upon payment. Articles are not to be reused in any way for any reason (including resell, reuse, re-write or give away). Scraped content will not be accepted.