Some maps are continually improving over time (e.g. OpenStreetMap) and so in order to not to have to (re)download the data all the time &appname; employs a timeout method - <emphasis>Tile Age</emphasis> to determine whether to access the server. However a forced refresh for the current view can be made via the <guilabel>Reload All Onscreen Maps</guilabel> option.
</para>
<para>
-Inbuilt maps include various <ulink url="http://en.wikipedia.org/wiki/TerraServer-USA">Terraserver</ulink> (Primarily USA coverage) and <ulink url="http://openstreetmap.org/">OpenStreetMap (OSM)</ulink> ones and more:
+Inbuilt maps include various <ulink url="http://openstreetmap.org/">OpenStreetMap (OSM)</ulink> ones and more:
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<itemizedlist>
<listitem><para>Bing Bird's Eye (Aerial) Maps (&appname; Version1.2+)</para></listitem>
-<listitem><para>Terraserver Topos</para></listitem>
-<listitem><para>Terraserver Aerials</para></listitem>
-<listitem><para>Terraserver Urban Areas</para></listitem>
<listitem><para>OpenStreetMap (Mapquest) - This is the default (&appname; Version1.3+)</para></listitem>
<listitem><para>OpenStreetMap (Mapnik)</para></listitem>
<listitem><para>OpenStreetMap (Cycle)</para></listitem>
<listitem><para>OpenStreetMap (Transport) (&appname; Version1.3+)</para></listitem>
+<listitem><para>OpenStreetMap (Humanitarian) (&appname; Version1.5+)</para></listitem>
<listitem><para>NASA BlueMarble</para></listitem>
</itemizedlist>