mschwar

Google Maps made Simple by WP-G-Mappity
WPGMappity allows you to easily insert Google Maps into your posts. No XML or JavaScript needed, building a Google Map is done completely in a WYSIWYG form inside your blog.
Versions 0.5 and above use version 3 of the Google Maps API. For you this means:
<ul>
<li>No API key needed</li>
<li>New features</li>
<li>Fast downloads: visitors to your blog only download one extra file from Google – nothing from you.</li>
</ul>
Features include:
<ul>
<li>Markers and custom icons</li>
<li>Routing</li>
<li>Map Controls</li>
<li>Completely customizable size and alignment</li>
</ul>
Project Home, full instructions, and help: <a href="http://matthewschwartz.me/wordpress/wpgmappity/" rel="nofollow ugc">http://matthewschwartz.me/wordpress/wpgmappity/</a>

Google Maps made Simple

Point, Click, Map. Build and insert Google Maps just as easily as you insert images.  All WYSIWYG: no JavaScript, no XML, no coding at all.

freedimensional

Foursquare is rising in popularity, and will continue to grow. This plugin makes it easy to share your last check-in location without needing to worry about giving away personal info, and you don’t need to be an expert in mapping APIs!
The plugin places a Google map in a widget area and lets users enter their preferences over what they show, be it just the map, or the name of the place too, or the comment they left while there. Simple, effective, and sociable.
<h4>Features:</h4>
<ul>
<li>Offers an easy way to share your last check-in location with your blog’s readers.</li>
<li>Built on the Foursquare and Google Maps APIs, so expect blistering fast speeds.</li>
<li>Intuitive interface for editing options, with plenty more power under the hood.</li>
<li>Independent handling across multiple widget instances, using WordPress 2.8’s widget_class coolness.</li>
</ul>

Foursquare Map

Adds a map of your last Foursquare check-in location to a widget area, and makes it easy to share with your readers without giving away too much info.

Google Maps made Simple vs Foursquare Map