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Hi there Kyle, Thanks for writing in!  Sorry for the delay, I was able to take a look at the data on the tests that I ran and to look at your crawl.  From what I can tell, these are the things I noticed: Our crawler is pulling up your internal links, if you check out your crawl diagnostic from your "Crawl Diagnostic" tab (export to CSV), you will find that we are pulling your internal links, they are under "link count." The internal links count we are displaying 0 is because that data is based off of our Mozcape index, so pages that we have not indexed yet will display "0" links, which is something that can be misleading since if we have no data for that page, then technically we didn't crawl the links. Our Mozcape index found some of your higher index pages, you can check them out here: www.opensiteexplorer.org/pages?site=www.powertoolworld.co.uk%2F In terms of why your pages isn't passing authority, I don't have a straight answer for that.  Since Google can index more of your pages than us, they are looking at a more broader picture than OSE, so the metrics in OSE should be used as a secondary stat rather than as your primary source. I hope that helps! Let me know if you have any questions here or in our help ticket Best, Peter SEOmoz Help Team.