rampantlogic

Geopost is a WordPress plugin based on Google Maps that let’s you specify a location for each post and generate an embedded map containing a marker for each post that has been assigned a location. Clicking on these markers will link you to the corresponding post. The map can be inserted into any post or page using the shortcode [geopost]. To set the location for a post, enter a search string in the Geopost metabox in the post’s admin page and press ‘Search’. If a location is recognized, a map will appear for you to confirm the result. Clicking on the marker icon in the editor window map rotates through different color icons.

Geopost

Uses Google Maps API to create a map containing markers for posts based on individually assigned geocoded locations.

webcat

The plugin aims to provide a quick and easy way to store googlemaps on your blog. By storing maps, requests to google map api are kept minimum 
and the possibility of not having a map show up on your page if google service is interrupted is reduced. Shortcodes are provided in the editor to make including a map you have created 
even easier.
Planned extensions will include editable notes for map flags and ajax to make creating a map more intuitive and support for the javascript and google 
earth apis.
<h3>6.0</h3>
*BETA 
*appologies if updates have not been working – now corrected. 
*html notes can now be added to flags – tested with
<
p> and <a> 
*code tidied up 
*Planned – include links or trackbacks in flags and a map key that can be displayed as a widget so that flags are colour coded 
*Remaining – include further features including paths and further javascript features</a>

googlemapsForWP

Quick and easy management of google maps to display on your blog.  Supports static maps api

Geopost vs googlemapsForWP