Lars is a developer of a Lightroom2ZenPhoto plugin “Lightroom 2 Zenphoto Publishing Service v1.5.1”.
The new publishing service feature of Lightroom gives you the possibility to monitor and manage exported images on different web services. Whenever you make changes on published photos (e.g. change the image settings or some of the metadata in Lightroom), these photos will be monitored and marked, automatically. You can now republish all these photos with a single click.