Coppermine Photo Gallery
Coppermine Photo Gallery is a picture gallery script. Users can upload pictures with a web browser (thumbnails are created on the fly), rate pictures, add comments and send e-cards. The admins can manage the galleries and batch add pictures that have been uploaded on the server by FTP. Support for multimedia files has been added recently.
Homepage: http://coppermine.sourceforge.net/
Support Forum: http://coppermine.sourceforge.net/board/
Gallery
Gallery is a web based software product that lets you manage your photos on your own website. You must have your own website with PHP support in order to install and use it. With Gallery you can easily create and maintain albums of photos via an intuitive interface. Photo management includes automatic thumbnail creation, image resizing, rotation, ordering, captioning, searching and more. Albums can have read, write and caption permissions per individual authenticated user for an additional level of privacy.
Homepage: http://gallery.menalto.com/