http://blogs.esri.com/Support/blogs/mappingcenter/archive/2009/07/13/the-map-sandwich.aspxLast week we started telling you about the new ArcGIS Online World Topographic Map . As I was working on the design of that map, with the intent of providing a better basis for mash-ups, I had an idea. It was born of frustration with the fact some mash-upsenCommunityServer 2.1 SP2 (Debug Build: 61120.2)http://blogs.esri.com/Support/blogs/mappingcenter/archive/2009/07/13/the-map-sandwich.aspx#1476Thu, 16 Jul 2009 22:12:16 GMTea115f99-f6e5-4fad-b763-900db94e773f:1476dschenk<p>Hi there Mr. Frye,</p> <p>I like the sandwich concept, which is similar to printed map production and keeping the lines and markers to the top of the stack. &nbsp;Will it work with live maps in the middle layer or do all layers have to be cached?</p> <p>Also, I love the look of the world terrain base, is there any guidance on how it was produced; cartographically speaking? &nbsp;I am currently using a swiss-shade terrain which has a bit to much gray on the flatlands.</p> <p>Sincerely, Douglas Schenk</p>