SharePoint 2007: Understanding Master Pages and PlaceHolders (Link dump)

Office Online - Basic Site Customizations (a quick introduction to customizing pages)http://office.microsoft.com/en-us/sharepointdesigner/HA101741431033.aspxSharePoint Pages - Page Anatomy1. Master Page2. Page Layout3. Page4. Web Part Zones5. General Purpose Web Partshttp://blogs.msdn.com/sharepoint/archive/2006/02/16/533461.aspxMaster Pages (Look and Feel)http://www.sharepointblogs.com/