How can I create a Gmap of certain nodes.
I have 3 categories at the moment. Each created under these categories has an address field which I currently use to post a gmap of this nodes location.

What I want to do is create map showing all the nodes on one map and possibly with different markers.

This I would think should not be too hard as all the info is in the database but my tiny mind cant get it to work..

thanks in advance