Your Planet Today displays a satellite map of the Earth in the sidebar of your blog. With the Google Maps 
integration, you can zoom in and pan around. All the satellite images used to generate the map are between 
3 and 36 hours old. With this widget you can monitor global weather patterns, dust storms, snow cover, and 
air quality.
Read more about Your Planet Today and navigate a full screen map <a href="http://www.wronkiewicz.net/earth/map.html" rel="nofollow ugc">here</a>.

Your Planet Today widget

Displays an interactive map of the Earth generated from recent satellite photos.

martijndeboer

Draws a map and inserts points on the location. Has the ability to draw multiple maps. Only accepts PNG as input and output.
Loads a xml from the admin panel, which tells us the following:
<ul>
<li>Image to load</li>
<li>Image to use for plotting a location</li>
<li>Locations
<ul>
<li>Title</li>
<li>x,y</li>
</ul>
</li>
</ul>
a valid xml should look like the following: 
Want to show the map? Just put <code><?php locationmap("mapid"); ?></code> in your template. Don’t want to hack a new template or existing template together ? Just put the following in your post: %locationmap: mapid% .
Font is the fine Semplice Regular from Style-Force. http://pixelfonts.style-force.net/

Locationmap

Builds a map from given location, and draws lines between them.

Your Planet Today widget vs Locationmap