You're in effect competing with yourself. Every page and post on your website should use a different but relevant keyword. You should only use the same keyword on a different site, ie. an article on Street Articles that you intend to point to a relevant page or post on your site. There is some historical research that all things being equal, a page will rank better than a post. However, a site full of pages will not prove user friendly to your visitors. I believe that it's less important to worry about search engines than the *engagement and *experience* you give your customers. Search engines don't buy anything, people do. :) Rich.