This plugin will automatically generate Goo.gl (Google Short URL) for your posts, custom posts, pages etc. You can track this information in your WP backend.
Upload the plugin and activate it. Once activated there will be a settings page under “Google Short URLs” > “Google Short URL Settings”. Here you can choose of wich post types the plugin should create Google Short URLS so you can track it and see the statistics.
Allso very important, go get a Google API key and save it in the settings and you are good to go.