Content Writing for Online News Site

There is an online News Site which will require news contents on various human interests on a regular basis, There are guides to be provided on a daily basis in respect of what contents to write on, Usually, articles would be provided and these would have to be rewritten and efforts made to avoid plagiarism. In other cases, topics would be given and research would be done and articles written This is a long term project. PLEASE QUOTE PRICE PER ARTICLE OR PER WHATEVER VARIABLE YOU CHOOSE TO USE.