There is a new version of snapGallery available: snapGallery 1.5c. Beyond a few minor fixes, the big addition is support for creative commons licenses. After adding titles and captions to your pictures, you can choose a creative commons license from a handy drop-down menu. (Or not, if you're not into cc licensing...nothing is mandatory.) If you'd like to contribute your gallery of photos to the public domain (with restrictions of your choosing), this is a simple way to automate the process. snapGallery generates the proper metadata for each page based on the license you choose, and adds a link to the human-readable license from the index. viva la public domain!