Jackson Whelan

Taxonomy Templates allows user selection of a theme’s available taxonomy templates, much like how pages can select their template.
When additional templates are available, a drop down appears on the edit Category, Tag and any custom taxonomy pages.

Taxonomy Templates

Taxonomy Templates allows user selection of a theme's available taxonomy archive templates, much like how pages can select their template.

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.

Taxonomy Templates vs Quick Location Maps