WP Map Markers is a plugin that brings the Google Maps Store locator library to your WordPress website. It uses the v3 API.
Extract the zip file and just drop the contents in the wp-content/plugins/ directory of your WordPress installation and then activate the Plugin from Plugins page.
First, check the default settings on the Map Markers setting page Create a map under the Maps section, not forgetting to provide the default map center coordinates. You can use the map on the settings page to get the latitude and longitude, and copy/paste them.
Add a few locations ( just like adding posts ) Insert a map on a page or post by using the wpmm_map shortcode. Multiple maps on same page is not supported
Insert a map easily by selecting it from a dropdown menu located in the post editor