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Hi theponyclub This was reviewed at one point last year and a response from our product team can be found here. https://seomoz.zendesk.com/entries/463828-webtrends-omniture-and-coremetrics-integrations?page=1#post_20881502 We haven't seen a lot of requests to integrate other tools but you could help start up a new discussion for our product team to review. What you would lose from Google Analytics will be organic visits for the site and social and landing pages data.