OotiniMaps is an atlas of locations from Star Wars: The Old Republic (SWTOR). This plugin allows links to OotiniMaps locations to generate a pop-up showing a tooltip with the location's map. Any waypoints included in the link are also shown on the displayed map.
The plugin is hosted on the Wordpress Plugin Directory. You can look it up via your Wordpress site's Dashboard (Plugins→Add New, search for "OotiniMaps").
Installation of this plugin is fairly easy: