Android articles writer

Hi , For a new android tutorial site i am looking an android devoloper and pro who can write articles and turorials about android. All the articles have to be writen writen clear with examples and pictures. I will need examples of your previous work also andoid related! Absolute excelent expertise of android is requiered. This is a longer term project with every week a few new articles to write. I will make it an hourly project but just tell me how much every article will cost me. Happy bidding!