Travis Hhoglund created a new WordPress plugin that adds the Pinterest pin button to your NextGEN Gallery lightbox.
To get started, make sure you have NextGEN Gallery installed on your WordPress site.
Then download, install and activate the Pinterest Lightbox plugin. No options need to be set. Travis created the plugin to work automatically.
Add this functionality to your NextGEN Gallery
It's great to see new plugins released to add specific Pinterest support to the NextGEN Gallery plugin.