Lightroom Zenphoto publishing service Mar 19, 2013 / Updated: Jan 14, 2015
A Lightroom 3 and 4 publishing service tool. The service gives you the possibility to sync Lightroom with your Zenphoto installation.
An update for Lightroom 5 is available here: https://www.zenphoto.org/news/lightroom5-zenphoto-publishing-service
This extension is hosted and (hopefully maintnained) by its author.