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I think if you try to do what you're suggesting you're going to end up with a headache for both yourself and your users. A simple and elegant solution to this would be to rewrite (or copy/paste) some of the blogs as pages, and set a canonical URL so Google knows which content it should attribute originality to. If you have a sidebar, you could also utilize a widget that recommends related blog posts to users if you'd rather maintain the structure you have, but callout related content and provide navigation.