Simon

When you blog about a specific location, you may want link to it. On android devices, you can use links in the style <code>geo:37.786971,-122.399677</code> for opening the location in a native map app such as Google Maps. However, most browsers will not understand this yet. On the other hand, if you link to the Open Street Map project directly, some users may not prefer this.
With this plugin, you can link to geo locations and support the user with a handler for it. Activating a geo-link will show a popup menu with various options for the user.
The urls have to follow the specification from <a href="http://en.wikipedia.org/wiki/Geo_URI" rel="nofollow ugc">http://en.wikipedia.org/wiki/Geo_URI</a>.
Your Feedback goes here: <a href="http://tricider.com/brainstorming/13HJn" rel="nofollow ugc">http://tricider.com/brainstorming/13HJn</a>
Note: This is the first beta release. I hope to develop this plugin much further. Please report every wish or issue you may have.

geoURI

When you blog about a specific location, you may want link to it. On android devices, you can use links in the style geo:37.786971,-122.

prakash.m

Power your site with this WordPress-integrated map making & location management system possessing mapping tools to create store locators, store finders, and other location address maps. Manage and display a few or thousands of your important stores, points of interest, or product locations anywhere on Earth using Google Maps. 
Its strength is best seen in its flexibility to allow you to easily manage any number of locations from your WordPress admin interface and the several addons featuring top-level features that are available to further boost its capabilities. Also referred to as an address map, address location map, locator map, store finder, dealer locator (locater), shop finder. 
mapwidget allow you to search any location from front end. want professional version check <a href="http://magento.ifyouknowit.com" rel="nofollow ugc">Go pro</a>
Example usage: 1. Go to admin mapworks settings and put google map api key of yours 2. in your page/post text/editer put this line: 
 [mapworks stext=”[php] if(isset($_POST[‘smap’])){ echo $_POST[‘smap’];} [/php]”]
<pre><code> in your php page you may put <?php 
 if(function_exists('mapworks') ){ mapworks($_POST['smap']); } ?> 
 <?php 
 if(function_exists('mapworks') ){ 
 print do_shortcode('[mapworks stext="'.$_POST['smap'].'"]'); } ?> 
 best option is in your page/post text editer in admin panel put this line. 
 [mapworks stext="[php] if(isset($_POST['smap'])){ echo $_POST['smap'];} [/php]"] </code></pre>

Mapworks

A WordPress-integrated map & location management interface. Quickly create street locator maps

geoURI vs Mapworks