Write digital marketing blog articles & content ( Growth hacking, SEO, SEM, Market Analysis, Etc..)

I am after a competent writer who can assist in developing articles on a wide range of digital markting topics, including SEO, SEM, Websites, Ecommerce, Security, Best practices, etc. These might be along... (Budget: $250 - $750 USD, Jobs: Advertising, Copywriting, Editorial Writing, Marketing, Writing)