ZeeMaps

With a few simple clicks, you can post a customized, interactive Google Map in your 
blog. Follow these simple steps to post your map:
<ul>
<li>Go to the ZeeMaps server (http://www.zeemaps.com) and create your map</li>
<li>Add markers, regions to your map</li>
<li>Add one marker at-a-time, using Additions->Add Marker menu item, or use Additions->Upload CSV to add multiple markers from a CSV file or Google Spreadsheet</li>
<li>After your map is done, note the map number for your map (the number on the map URL after the parameter group=)</li>
<li>Make sure you have the ZeeMaps plugin downloaded and activated</li>
<li>Go to edit your blog entry</li>
<li>In the second row for your blog editor menu buttons, you should see a new button with the Google marker icon</li>
<li>Place your cursor in the location where you want to publish your map in the editor window</li>
<li>Click on the Google marker icon button</li>
<li>Enter your map number and customize your published map in the resulting dialog</li>
<li>Click on the insert button</li>
</ul>
This should add some text to your blog like:
[zeemaps 45 w=100% h=500 add geosearch]
This text will be replaced by the map in your blog.

Create and customize an interactive Google Map using ZeeMaps and then easily publish it in your blog post.

Erik Fantasia

With Map My Posts, you can easily create maps plotting the location of your posts, based upon your existing tags or categories.
<ul>
<li>3 map types available: Google Maps, Google Static Maps (PNG image), and Geochart Visualizations.</li>
<li>Embed maps on any page using the shortcodes [mmp-map], [mmp-staticmap], and [mmp-geochart]</li>
<li>Associate with a country or any specific map location.</li>
<li>Map My Posts uses existing category or tag names to help define country associations.</li>
<li>Widgets available to display maps in the sidebar.</li>
<li>Full control over size, colors, and click functions.</li>
<li>Perfect for travel bloggers, touring musicians, or anyone else that wants to Map My Posts!</li>
</ul>
Get Help
Please leave a message on <a href="https://wordpress.org/support/plugin/map-my-posts" rel="ugc">the wordpress.org support forum for Map My Posts</a>

Map My Posts

Less is more. Light is better. You original idea is awesome. Keep going ! These updates would be appreciate : 
- an update to use the new Google Map API,
- make it 100% WPML compatible (join translated locations using shortcode static map)
- be able to add our own custom taxonomy from the dashboard 

Your original idea is awesome

Map My Posts allows you to display a Google Map or Geochart visualization, associating map locations with your existing categories or tags.

ZeeMaps vs Map My Posts