We have different websites targeted at the different services our company provides. (e.g. For our document storage services, we have www.ukdocumentstorage.com. For document management, we have www.document-management-solutions.co.uk). If we take the storage site for example, every single page has a link in the footer to our document management site, with the anchor text 'Cleardata Document Management' SEOMoz is telling me that these are seen as external links (as they are on a different URL's), and I'm just clarifying that would this be a major possible factor in the website not ranking highly? How should I rectify this issue?