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We're thinking about moving our domain from www.domain.net to domain.com as we just acquired the dot com domain.  www.domain.net receives roughly 20million pageviews per month and gets about 90% of it's traffic from search engines. What is best to do in this situation? Should we start using .com instead of .net?  301 redirecting traffic to the .com from .net? Should we drop the www in front?