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I have tried xml-sitemaps which tends to crash when spidering my site(s) and requires multiple manual resumes which aren't practical for our businesses.  Please let me know if any other server-side generators that could be used on multiple enterprise-sized websites exist that could be a good fit. Image sitemaps would also be helpfu.l +++One with multiple starting URLs would help spidering/indexing the most important sections of our sites. Also, has anyone heard of or used Dyno Mapper?  This also looks like a good solution for us, but was wondering if anyone has had any experience with this product.

Does anyone know of a 3rd party sitemap generator that will only include the canonical url's?  Creating a sitemap with geo and sorting based parameters isn't the most ideal way to generate sitemaps.  Please let me know if anyone has any ideas.  Mind you we have hundreds of thousands of indexed url's and this can't be done with a simple text editor.

Adding code to redirect/clean up ugly URL's slows down mobile site performance, so it is necessary if we are already using rel=alternate tags on our desktop/www pages?

I spoke to one of my lead web developers and we are planning on powering all of our desktop, mobile and tablet sites with our new API.  Everything will be populated through javascript and is cloud-based rather than through actual HTML.  How do we incorporate all of our SEO?