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.

Matt Gibbs

Marty Spellerberg

The Address Geocoder plugin lets you attach coordinates to your posts, pages, and custom post types. On your edit screens, simply enter an address into the metabox and hit “Geocode”.
This plugin uses Google Maps API v3 to translate an address to lat/lng coordinates. A Google Maps API key is required.
<h3>Fequently Asked Questions</h3>
<h4>How do I retrieve the coordinates?</h4>
Access your data in the loop using the following functions, with the post ID passed as a parameter. For the full coordinates (in brackets):
<pre><code><?php echo get_geocode_latlng( $post->ID ); ?>
</code></pre>
For the Latitude:
<pre><code><?php echo get_geocode_lat( $post->ID ); ?>
</code></pre>
For the Longitude:
<pre><code><?php echo get_geocode_lng( $post->ID ); ?>
</code></pre>
For the Address:
<pre><code><?php echo get_geocode_address( $post->ID ); ?>
</code></pre>

Address Geocoder

Add location coordinates to your post types.

geoURI vs Address Geocoder