Advanced Store Locator is a free wordpress plugin that is using google map services. It supports multiple marker with radius which is great for business branches or any other purposes that want to show their respective scope in a particular area.
Place the shortcode in your post/page editor.
Must See Places in the Philippines!
ORGANIZATIONS THAT ARE USING MY PLUGIN:
Just released a more stable version (v1.7). Added wp-updates support and users now are required to change the google map api in the settings page in order for the google map to work continuously.