The majority of Facebook users started off using personal email addresses, connecting with personal friends and family. As folks have implemented Facebook for business - there is frequently a collision of the personal and business information. As you start to archive - you may find that your Fan (business) page is administered by your personal profile. Facebook has a mechannism for transferring the admin of a Fan page to a different profile (which could be a profile you have setup with your business email address). http://www.facebook.com/help/?faq=15708