Alternative Address Mappings and More …

SharePoint 2010 - configuring URLs for Internet use (AAR, URL rewriting, alternate access mappings)

http://blogs.technet.com/b/digital_musketeer/archive/2012/02/03/sharepoint-2010-configuring-urls-for-internet-use-aar-url-rewriting-alternate-access-mappings.aspx

AAM Video http://technet.microsoft.com/en-us/sharepoint/ff679917.aspx

AAM and DNS http://blogs.technet.com/b/tothesharepoint/archive/2011/05/25/coordinating-urls-with-aam-and-dns.aspx

AAM and Search http://blogs.msdn.com/b/enterprisesearch/archive/2010/05/28/server-name-mapping-and-alternate-access-mapping-aam.aspx

AAM vs. Extend Web Application (good discussion)

http://social.msdn.microsoft.com/Forums/ta/sharepoint2010general/thread/32920fdb-11cc-45ea-87de-ed6a9a875a4b

Note that for the Default Zone use a FQDN