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I just want to chime in on the "most people don't bother to consult sitemaps  - if they need to consult it to find their way on your site you probably have a UX problem" statement. I agree, but a lot of sites DO have a UX problem, and for that reason I use HTML sitemaps. If you're in a hurry, and let's face it, everyone is, you can go directly to the HTML sitemap and search for whatever it is you're looking for. And yes, a lot of sites still DON'T have search either b/c they think their UX is fine and therefore don't need search. Can't tell you how many times I've had that conversation with site developers....