Very basic functionalities to add geo tags to a blog post.
Bittip.It Plugin
Geotag your posts with Bloom to create a local search and mapping visuals for your readers.
This plugin replaces the default gallery feature in WordPress 2.5 Lightbox/Slimbox/Greybox/Thickbox/lightview, Exif and Geo/GPS support (Google Map/Yahoo Map/MS Virtual Earth).
Sorry, discontinued
Provides geocoding features for your Wordpress blog.
Link to geo-locations and let your user decide how to open them: Google Maps, Open Streetmap, App etc. A handler for geo uri links.
A simple and easy way to geotag your posts.
GeoSwitch is a plugin that allows you to change the content of your site based on the location of your client’s IP.
LH Places is a complete solution geo enabling your wordpress website, it does so in a standards compliant way and does not create additional database tables.
A Wordpress plugin to display customers and stores on a map.
Geotag your posts with Bloom to create a local search and mapping visuals for your readers.
StoryMaps plot your blog posts on a map widget to help readers navigate your stories by location. This plugin allows you to embed a StoryMap on your WP blog.
The most powerful app builder for Wordpress. Create an impressive mobile app in minutes.
This plugin provides geolocation metadata throughout the blog based on Brightkite data.
Search for posts around a location with a specific distance.
Images with GPS on Google Maps displays your photos on a Google Maps map using GPS or without GPS Geotags.
THIS PLUGIN WILL NOT WORK ANYMORE!
Geotag your posts to enable local search and other hyperlocal experiences for your readers.