Copywriting, Long Term

I need original content about retail marketing to consumers in the US. Anything that has to do with Direct Mail, In-Store promotions and POS, effective use of promotional products, etc. Anything that a mom and pop or small retail chain would find useful. I need to be able edit as necessary to fit the medium, without fear that they're reappear somewhere, or that another author claims ownership. Outright plagiarism will not be accepted. US authors only, sorry. Each article should be 600-700 words or so.