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Yelp.com seems to dominate a lot of search results for a lot of reasons. Specifically, I've noticed that their internal search results URL appears in Google for tons of results like "hem jeans new york".  They dominate TONS of terms like this and it's always an internal search result page for yelp that appears in #1 Google. From what I can tell, yelp.com is taking various keyword permutations from their internal search, combined with local city/zip info and creating such landing pages. Here is a URL result for "hem jeans new york" http://www.yelp.com/search?find_desc=Hem+Jeans&find_loc=New+York%2C+NY My question is this...What are the specific causes of their success on this type of local / long-tail / specific keyword strategy?  Is it... 1.  Using dynamic sitemaps to feed Google thousands of URLs with various keyword permutations attached.? 2.  Their domain reputation, inbound links, etc. etc. 3.  Both?  Something else? Thanks for your feedback.