F-Spot is a graphical photo manager that allows you to tag your image files and search and view images based on those tags. With phpfspot, you can share the photo collection you manage with F-Spot with others through a Web interface and let them navigate through your photos using the tags you have set up.
No packages exist for phpfspot for Ubuntu, Fedora, or openSUSE. I built it from source using version 1.4 and installed phpfspot on the desktop machine that I have F-Spot installed on. If you're running Debian Etch you might like to see this HOWTO for installation. phpfspot requires PHP 5 with GD and SQLite3 extensions, as well as the Calendar and HTML_AJAX PEAR extensions and the Smarty template engine.