Customize maps in your post, pages and widgets. Add geotag to your blog and site. Use GPX, KML, CSV, TXT ...
Official Geocache stat bar widget
OpenStreetMap plugin to embed a map with markers to articles from different categories in different map layers.
This Plugin makes Geocache Bloggers life easyer, with a little Waypoint linking shortcut.
Quickly and easily add links to your blog posts, which when clicked, starts up the Google Earth program at the specified location (lat/long).
gcStats plugin to embed some statistics with found geocaches in your blog.