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GMap, Location Module Basics in Drupal 6
This screencast shows you how to use and configure the GMap and Location modules with Drupal 6.
The video show via an example how to add a google map to a node type using the GMap and Location modules.
There is a little bit of coding at the theme layer that show a simple way to draw a google map from inside a theme.
See also the follow up video http://www.drupalove.com/drupal-video/gmap-location-module-and-views