Justin Givens

The plugin uses the Google Badge System and pulls the JSON file. The plugin then parses through the json file and displays your current location. You need to have a Google Account and signed into Google Latitude on your computer/mobile device. The idea behind this plugin is have my blog display my current location without my editing anything.
This plugin requires php5 or greater.

Current Location

Gets your current location from Google Badge System. Use  to display your current location.

Shashikanta

This Plugin insert a location map in your posts/pages using the iFrame based Google Maps without any Api. 
The user can set the exact coords (latutude or longitudes) or insert the location address. If you want to insert a map in a posts you must to generate two personalized fields (called ‘latitude’ and ‘longitude’) with the coordinates or a personalized field called ‘location’ with the address.
This is good for Real Estate type of Blog as shown in the pics and Custom filed type location. It is very lightweight tested in wordpress 3.3.2 version, custom template ready, Google API free.

Quick Location Maps

This Plugin insert a google map in to your posts using the Google Maps Api Free.

Current Location vs Quick Location Maps