Oppso Maps is a simple and easy to use wordpress plugin for displaying Google Maps on your site / blog. It uses the latest Google Map Api ( v3 ) so there is no API key requiered.
You just have to install and go to the shortcode builder, create your shortcode and display it.
It’s easy! You just enter the address or coordinates, set the size for the map and you have the shortcode. You can preview the map right there, while you create it!