Stupid Simple Google Maps is a plugin for WordPress by erik.wiffin that allows for the simple embeding of Google Maps in posts. This is done using shortcodes.
For example: [simple-map]1600 Amphitheatre Parkway, Mountain View, CA[/simple-map] will drop in a map with a marker on Google’s California headquarters.
height: The height of the resulting map. Defaults to “512”.
width: The width of the resulting map. Defaults to “512”.
color: The color of the marker. Defaults to “red”.
label: Will accept any single character uppercase letter to use as the symbol in the marker. Defaults to a dot.
zoom: The zoom level of the resulting map. Defaults to 15.
maptype: Determines the format of the map. Defaults to “roadmap”. Will accept “roadmap”, “satellite”, “terrain”, or “hybrid”
Download and info; http://wordpress.org/extend/plugins/stupid-simple-google-maps/