UnGallery displays your directories of images as a browsable WordPress gallery.
The advantage of UnGallery is there is there is no gallery management required in WordPress. You just point the plugin to a directory of photos and they are immediately viewable via an existing WordPress site. Any uploads, deletions, or edits you make to your photos and directory organization are automatically reflected in WordPress.
If you’ve ever had to reorganize galleries after publishing, you know how inconvenient it is to return to a web tool to correct the paths, relink the thumbnails, update titles, etc. With UnGallery, you can restructure entire galleries, edit a dozen party pic red-eyes, rename an event or remove individual photos and each of these changes is automatically live in WordPress.
[Introduction and installation screencast](http://markpreynolds.com/technology/wordpress-ungallery)