I want to launch a WP site that targets long tail niche keywords. The homepage will appeal to the exact keyword, and subsequent pages are similar keywords, rearranged keywords, misspellings, etc. <header> <1-2 sentences of keyword dense, but useful sentences describing the site> <Banner ADS> <Blog post (approx. 400 words) with related content to the keyword> <post comments> <nav links> <footer> I'm going to have ads (see Banner ADS) that never change, as well as the 1-2 sentence keyword dense sentences. Now here's my dilemma, what would tend to stick more in ranking? Where everything, including the blog post, rarely changes at all, just having comments added to it often? Or, the "blog post" gets updated by autoblog and rewritten every week? Each page would have its own rewritten articles pertaining to the keyword. What do you think?