I need a native English speaker who can produce articles of varying lengths (200 to 1000 words) on various topics as assigned. You also need to be able to hit targets for the following as I will define them: - inclusion of certain key words and phrases - exclusion of certain key words and phrases - appropriate "keyword density" (ratio of key words to non-key words) - number of bullet points - et cetera You may need to do the necessary research on your own, or someone...